CCNA 4 R&S: Connecting Networks Flashcards by Lewis Davis

Why is it useful to categorize networks by size when discussing network design?

Knowing the number of connected devices will define how many additional layers will be added to the three-tier hierarchical network design.

Knowing the number of connected devices will define how many multilayer switches will be necessary at the core layer.

A high-level redundancy at the access layer may be better implemented if the number of connected devices is know.

The complexity of networking infrastructure will vary according to the number of connected devices.

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Which two statements are true regarding a PPP connection between two Cisco routers? (Choose two.)

Only a single NCP is allowed between the two routers.
NCP terminates the link when data exchange is complete.
With CHAP authentication, the routers exchange plain text passwords.
LCP tests the quality of the link.
LCP manages compression on the link.

LCP tests the quality of the link.

LCP manages compression on the link.

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What is a disadvantage of a packet-switched network compared to a circuit-switched network?

fixed capacity
higher latency
less flexibility
higher cost

higher latency

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Which statement describes a characteristic of dense wavelength division multiplexing (DWDM)?

it assigns incoming electrical signals to specific frequencies.
it can be used in long-range communications, like connections between ISPs.
it enables bidirectional communications over one pair of copper cables.
it supports the SONET standard, but not the SDH standard.

it can be used in long-range communications, like connections between ISPs.

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Refer to the exhibit. A network administrator is troubleshooting the OSPF network. The 10.10.0.0/16 network is not showing up in the routing table of Router1. What is the probable cause of this problem?

The OSPF process is configured incorrectly on Router1.
There is an incorrect wildcard mask statement for network 10.10.0.0/16 on Router2.
The OSPF process is not running on Router2.
The serial interface on Router2 is down.

There is an incorrect wildcard mask statement for network 10.10.0.0/16 on Router2.

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The security policy in a company specifies that the staff in the sales department must use a VPN to connect to the corporate network to access the sales data when they travel to meet customers. What component is needed by the sales staff to establish a remote VPN connection?

VPN appliance
VPN concentrator
VPN client software
VPN gateway

VPN client software

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A network administrator is troubleshooting the dynamic NAT that is configured on router R2. Which command can the administrator use to see the total number of active NAT translations and the number of addresses that are allocated from the NAT pool?

R2# show ip nat translations
R2# clear ip nat translation
R2# show running-config
R2# show ip nat statistics

R2# show ip nat statistics

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Which three parts of a Frame Relay Layer 2 PDU are used for congestion control? (Choose three.)

the FECN bit
the BECN bit
the C/R bit
the 10-bit DLCI
the Extended Address field
the DE bit

the DE bit
the FECN bit
the BECN bit

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Which two statements correctly describe asymmetric encryption used with an IPsec VPN? (Choose two.)

The same encryption keys must be manually configured on each device.
Public key encryption is a type of asymmetric encryption.
Encryption and decryption use a different key.
A shared secret key is used to perform encryption and descryption.
AES is an example of an asymmetric encryption protocol.

Public key encryption is a type of asymmetric encryption.

Encryption and decryption use a different key.

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Which WAN technology can serve as the underlying network to carry multiple types of network traffic such as IP, ATM, Ethernet, and DSL?

MPLS
ISDN
Ethernet WAN
Frame Relay

MPLS

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Which command can be used to check the information about congestion on a Frame Relay link?

show frame-relay lmi
show interfaces
show frame-relay pvc
show frame-relay map

show frame-relay pvc

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Which two statements describe remote access VPNs? (Choose two.)

Client software is usually required to be able to access the network.
Remote access VPNs are used to connect entire networks, such as a branch office to headquarters.
Remote access VPNs support the needs of telecommuters and mobile users.
A leased line is required to implement remote access VPNs.
End users are not aware that VPNs exists.

Client software is usually required to be able to access the network.
Remote access VPNs support the needs of telecommuters and mobile users.

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Refer to the exhibit. Which three steps are required to configure Multilink PPP on the HQ router? (Choose three.)

Bind the multilink bundle to the Fast Ethernet interface.
Enable PPP encapsulation on the multilink interface.
Assign the serial interfaces to the multilink bundle.
Create and configure the multilink interface.
Assign the Fast Ethernet interface to the multilink bundle
Enable PPP encapsulation on the serial interfaces.

Create and configure the multilink interface.

Enable PPP encapsulation on the serial interfaces.

Assign the serial interfaces to the multilink bundle.

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What are two examples of network problems that are found at the data link layer? (Choose two.)

incorrect interface clock rates
late collisions and jabber
framing errors
electromagnetic interface
encapsulation errors

encapsulation errors

framing errors

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What is the protocol that provides ISPs the ability to send PPP frames over DSL networks?

CHAP
ADSL
PPPoE
LTE

PPPoE

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What is required for a host to use an SSL VPN to connect to a remote network device?

The host must be connected to wired network.
A site-to-site VPN must be preconfigured.
A web browser must be installed on the host.
VPN client software must be installed.

A web browser must be installed on the host.

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Refer to the exhibit. A network administrator has implemented the configuration in the displayed output. What is missing from the configuration that would be preventing OSPF routing updates from passing to the Frame Relay service provider?

The command to disable split horizon has not been issued.
The passive-interface command has not been issued on interface serial 0/1/0
The directly connected neighbor should have been identified by using static mapping.
The broadcast keyword has not been issued.

The broadcast keyword has not been issued.

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Refer to the exhibit. An administrator is configuring NAT to provide Internet access to the inside network. After the configurtation is completed, users are unable to access the internet. What is the cause of the problem?

The inside and outside interfaces are backwards.
The ACL is referencing the wrong network address.
The NAT inside source command is referring to the wrong ACL.
The NAT pool is using an invalid address range.

The NAT inside source command is referring to the wrong ACL.

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A company connects to one ISP via multiple connections. What is the name given to this type of connection?

multihomed
single-homed
dual-multihomed
dual-homed

dual-homed

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Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)

There is connectivity between this device and the device at 192.168.100.1.
The average transmission time between the two hosts is 2 miliseconds.
This host does not have a default gateway configured.
The connectivity between these two hosts allows for videoconferencing calls.
There are 4 hops between this device and the device at 192.168.100.1.

There are 4 hops between this device and the device at 192.168.100.1.

There is connectivity between this device and the device at 192.168.100.1.

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A network administrator is configuring a PPP link with the commands:
R1(config-if)# encapsulation ppp
R1(config-if)# ppp quality 70

What is the effect of these commands?

The NCP will send a message to the sending device if the link usage reaches 70 percent.
The PPP link will be closed down if the link quality drops below 70 percent.
The LCP establishment phase will not start until the bandwidth reaches 70 percent or more.
The PPP link will not be established if more than 30 percent of options cannot be accepted.

The PPP link will be closed down if the link quality drops below 70 percent.

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Which IEEE standard defines the WiMax technology?

802.16

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Which three flows associated with consumer applications are supported by NetFlow collectors? (Choose three.)

accounting
network monitoring
error correction
bandwidth regulation
quality of service
billing

billing
network monitoring
accounting

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Refer to the exhibit. What kind of NAT is being configured on R1?

NAT overload
dynamic NAT
port forwarding
PAT

port forwarding

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What is the default location for Cisco routers and switches to send critical logging events? syslog server virtual terminal console port auxiliary port

console port

In the data gathering process, which type of device will listen for traffic, but only gather traffic statistics? SNMP agent NetFlow collector syslog server NMS

NetFlow collector

What is a characteristic of Frame Relay that allows customer data transmissions to dynamically “burst” over their CIR for short periods of time? The combination of LMI status messages and Inverse ARP messages enables the CIR to be exceeded. The physical circuits of the Frame Relay network are shared between subscribers and there may be times when unused bandwidth is available. BECN and FECN messages notify the router that the CIR can be exceeded. Bursting is enabled by the configuration of multiple subinterfaces on one physical interface.

The physical circuits of the Frame Relay network are shared between subscribers and there may be times when unused bandwidth is available.

Which SNMP message type informs the network management system (NMS) immediately of certain specified events? GET response SET request GET request Trap

Trap

Which statement is a characteristic of SNMP MIBs? The SNMP agent uses the SNMP manager to access information within the MIB. The MIB structure for a given device includes only variables that are specific to that device or vendor. The MIB organizes variables in a flat manner. The NMS must have access to the MIB in order for SNMP to operate properly.

The NMS must have access to the MIB in order for SNMP to operate properly.

What benefit does NAT64 provide? It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses. It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address. It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure form hosts on public IPv4 networks. It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.

It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.

What is the expected behavior of an ADSL service? The user can select the upload and download rates based on need. The download and upload rates are the same. The upload rate is faster than the download rate. The download rate is faster than the upload rate.

The download rate is faster than the upload rate.

The DLCI number assigned to a Frame Relay circuit is to be manually added on a point-to-point link. Which three subinterface commands could be used to complete the configuration? (Choose three.) ``` frame-relay map ip ip-address dlci frame-relay map ip ip-address dlci broadcast no shutdown ip address ip-address mask encapsulation farme-relay bandwidth kilobits frame-relay interface dlci dlci ```

frame-relay interface dlci dlci bandwidth kilobits ip address ip-address mask

A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necesary information? (Choose three.) ``` tracert telnet ping netsh interface ipv6 show neighbor nslookup arp -a ipconfig ```

ipconfig nslookup ping

Refer to the exhibit. Router R1 was configured by a network administrator to use SNMP version 2. The following commands were issued: R1(config)# snmp-server community batonaug ro SNMP_ACL R1(config)# snmp-server contact Wayne World R1(config)# snmp-server host 192.168.1.3 version 2c batonaug R1(config)# ip access-list standard SNMP_ACL R1(config-std-nacl)# permit 192.168.10.3 Why is the administrator not able to get any information from R1? The snmp-server community command needs to include the rw keyword. The snmp-server location command is missing. There is a problem with the ACL configuration. The snmp-server enable traps command is missing.

There is a problem with the ACL configuration

Which broadband technology would be best for a small office that requires fast upstream connections? DSL Cable fiber-to-the-home WiMax

fiber-to-the-home

Refer to the exhibit. The inside local IP address of PC-A is 192.168.0.200. What will be the inside global address of packets from PC-A after they are translated by R1? 192. 168.0.1 172. 16.0.1 209. 165.200.225 10. 0.0.1 192. 168.0.200

209.165.200.225

What is a type of VPN that is generally transparent to the end user? remote access public site-to-site private

site-to-site

Which two statements about DSL are true? (Choose two.) user connections are aggregated at a DSLAM located at the CO uses RF signal transmission users are on a shared medium local loop can be up to 3.5 miles (5.5km) physical and data link layers are defined by DOCSIS

local loop can be up to 3.5 miles (5.5km) user connections are aggregated at a DSLAM located at the CO

Refer to the exhibit. Which three events will occur as a result of the configuration shown on R1? (Choose three.) Only traffic that originates from the GigabitEthernet 0/1 interface will be monitored. Messages that are sent to the syslog server will be limited to levels 3 or lower. Messages that are sent to the syslog server will use 192.168.1.5 as the destination IP address. The syslog messages will contain the IP address the GigabitEthernet 0/1 interface. Messages that are sent to the syslog server will be limited to levels 3 and higher. For multiple occurrences of the same error, only the first three messages will be sent to the server.

Messages that are sent to the syslog server will be limited to levels 3 or lower. Messages that are sent to the syslog server will use 192.168.1.5 as the destination IP address. The syslog messages will contain the IP address the GigabitEthernet 0/1 interface.

Which two characteristics describe time-division multiplexing? (Choose two.) Traffic is allocated bandwidth across a single wire based on preassigned time slots. Bandwidth is allocated to channels based on whether a station has data to transmit. Encoding technology provides high data throughput in a minimum RF spectrum by supporting parallel data transmission. Data capacity across a single link increases as bits from multiple sources are transmitted using interleaved slices of time. Depending on the configured layer 2 protocol, data is transmitted across two or more channels via the use of time slots.

Traffic is allocated bandwidth across a single wire based on preassigned time slots. Data capacity across a single link increases as bits from multiple sources are transmitted using interleaved slices of time.

Which two specialized troubleshooting tools can monitor the amount of traffic that passes through a switch? (Choose two.) ``` TDR DTX cable analyzer NAM digital multimeter portable network analyzer ```

portable network analyzer NAM

Which circumstance would result in an enterprise deciding to implement a corporate WAN? when its employees become distributed across many branch locations when the enterprise decides to secure its corporate LAN when the network will span multiple buildings when the number of employees exceeds the capacity of the LAN

when its employees become distributed across many branch locations

Which algorithm is considered insecure for use in IPsec encryption? RSA 3DES SHA-1 AES

3DES

What is one advantage to designing networks in building block fashion for large companies? fewer required physical resources increased network access time coarse security control failure isolation

failure isolation

Which two technologies are implemented by organizations to support teleworker remote connections? (Choose two.) ``` CMTS VPN CDMA IPsec DOCSIS ```

IPsec | VPN

A branch office uses a leased line to connect to the corporate network. The lead network engineer confirms connectivity between users in the branch office, but none of the users can access corporate headquarters. System logs indicate that nothing has changed in the branch office network. What should the engineer consider next to resolve this network outage? The network technician for the branch office should troubleshoot the switched infrastructure. The server administrator in the branch office should reconfigured the DHCP server. The service provider for the branch office should troubleshoot the issue starting from the point of demarcation. The system administrator in the branch office should reconfigure the default gateway on the user PCs.

The service provider for the branch office should troubleshoot the issue starting from the point of demarcation.

Refer to the exhibit. Which IP address is configured on the physical interface of the CORP router? 10. 1.1.1 209. 165.202.134 10. 1.1.2 209. 165.202.133

209.165.202.133

How many 64 kb/s voice channels are combined to produce a T1 line? 8 32 24 16

Which network module maintains the resources that employees, partners, and customers rely on to effectively create, colaborate, and interact with information? services access-distribution data-center enterprise edge

data-center

Which broadband solution is appropriate for a home user who needs a wired connection not limited by distance? ADSL cable DSL WiMax

cable

A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP can only supply five public IP addresses for this network. What technology can the administrator use to accomplish this task? classless interdomain routing variable length subnet masks classful subnetting port-based Network Address Translation

port-based Network Address Translation

What is the purpose of a message hash in a VPN connection? It ensures that the data is coming from the correct source. It ensures that the data cannot be duplicated and replayed to the destination. It ensures that the data has not changed while in transit. It ensures that the data cannot be read in plain text.

It ensures that the data has not changed while in transit.

Which type of traffic would most likely have problems when passing through a NAT device? ``` DNS Telnet HTTP ICMP IPsec ```

IPsec

Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior? network configuration files syslog records and messages debug output and packet captures the network performance baseline

the network performance baseline

What are three benefits of using Frame Relay for WAN connectivity? (Choose three.) mature technology QoS support using the IP precedence field integrated encryption one physical interface that can be used for several circuits reasonable cost seamless direct connectivity to an Ethernet LAN

one physical interface that can be used for several circuits reasonable cost mature technology

What type of information is collected by Cisco NetFlow? interface errors traffic statistics memory usage CPU usage

traffic statistics

Which technology requires the use of PPPoE to provide PPP connections to customers? dialup ISDN modem T1 DSL dialup analog modem

DSL

Under which two categories of WAN connections does Frame Relay fit? (Choose two.) ``` packet-switched private infrastructure public infrastructure Internet dedicated ```

private infrastructure packet-switched

What are three characteristics of the generic routing encapsulation (GRE) protocol? (Choose three.) GRE tunnels support multicast traffic. GRE creates additional overload for packets that are traveling through the VPN. GRE uses AES for encryption unless otherwise specified By default, GRE does not include any flow control mechanisms. Developed by the IETF, GRE is a secure tunneling protocol that was designed for Cisco routers. GRE provides encapsulation for a single protocol type that is traveling through the VPN.

GRE tunnels support multicast traffic. By default, GRE does not include any flow control mechanisms. GRE creates additional overload for packets that are traveling through the VPN.

An intercity bus company wants to offer constant Internet connectivity to the users traveling on the buses. Which two types of WAN infrastructure would meet the requirements? (Choose two.) ``` cellular dedicated private infrastructure circuit-switched public infrastructure ```

public infrastructure | cellular

What is used as the default event logging destination for Cisco routers and switches? syslog server terminal line workstation console line

console line

Refer to the exhibit. H1 can only ping H2, H3, and the Fa0/0 interface of router R1. H2 and H3 can ping H4 and H5. Why might H1 not be able to successfully ping H4 and H5? The link between router R1 and switch S2 has failed. Host H1 does not have a default gateway configured. Router R1 does not have a route to the destination network. Hosts H4 and H5 are members of a different VLAN than host H1. Switch S1 does not have an IP address configured.

Host H1 does not have a default gateway configured.

Which troubleshooting tool would a network administrator use to check the Layer 2 header of frames that are leaving a particular host? Knowledge base CiscoView baselining tool protocol analyzer

protocol analyzer

Which structured engineering desing principle ensures that the network reamins available even under abnormal conditions? resiliency hierarchy flexibility modularity

resiliency

Two corporations have just completed a merger. The network engineer has been asked to connect the two corporate networks without the expense of leased lines. Which solution would be the most cost effective method of providing a proper and secure connection between the two corporate networks? ``` Cisco Secure Mobility Clientless SSL VPN Remote access VPN using IPsec Cisco AnyConnect Secure Mobility Client with SSL Frame Relay site-to-siteVPN ```

site-to-siteVPN

A team of engineers has identified a solution to a significant network problem. The proposed solution is likely to affect critical network infrastruture components. What should the team follow while implementing the solution to avoid interfering with other processes and infrastructure? suslog messages and reports one of the layered troubleshooting approaches change-control procedures knowledge base guidelines

change-control procedures

Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem? NAT is required for the host A network. Host A has an incorrect subnet mask. Host A has an incorrect default gateway configured. The router has an incorrect gateway. Host A has an overlapping network address.

NAT is required for the host A network.

Refer to the exhibit. Which two statements describe the results of entering these commands? (Choose two.) R1 will not send critical system messages to the server until the command debug all is entered. R1 will send system messages of levels 0 (emergencies) to level 4 (warnings) to a server. The syslog server has the IPv4 address 192.168.10.10. R1 will reset all the warnings to clear the log. R1 will output the system messages to the local RAM.

R1 will send system messages of levels 0 (emergencies) to level 4 (warnings) to a server. The syslog server has the IPv4 address 192.168.10.10.

What is a Frame Relay feauture that supports the IP address-to-DLCI dynamic mapping? FECN Inverse ARP ARP BECN

Inverse ARP

What term is used to identify the point where the customer network ends and the service provider network begins? the central office CSU/DSU the local loop the demarcation point

the demarcation point

What is used as the default event logging destination for Cisco routers and switches? syslog server console line terminal line workstation

console line

``` A small remote office needs to connect to headquarters through a secure IPsec VPN connection. The company is implementing the Cisco Easy VPN solution. Which Cisco Easy VPN component needs to be added on the Cisco router at the remote office? Cisco AnyConnect Cisco Easy VPN Server Cisco Easy VPN Remote Cisco VPN Client ```

Cisco Easy VPN Server

Which scenario would require the use of static NAT? when an internal corporate web server needs to be accessed from a home network when there are more internal private IP addresses than available public IP addresses when all public IP addresses have been exhausted when an IPv4 site connects to an IPv6 site

when an internal corporate web server needs to be accessed from a home network

An organization has purchased a Frame Relay service from a provider. The service agreement specifies that the access rate is 512 kbps, the CIR is 384 kbps, and the Bc is 32 kbps. What will happen when the customer sends a short burst of frames above 450 kbps? The frames are marked with the DE bit set to 1 and are most likely forwarded. The frames are marked with the DE bit set to 0 and are most likely forwarded. The frames are marked with the DE bit set to 0 and are allowed to pass. The frames are marked with the DE bit set to 1 and are most likely dropped

The frames are marked with the DE bit set to 1 and are most likely dropped

What is a Frame Relay feature that supports the IP address-to-DLCI dynamic mapping? Inverse ARP ARP BECN FECN

Inverse ARP

An administrator wants to configure a router so that users on the outside network can only establish HTTP connections to the internal web site by navigating to http://www.netacad.com:8888. Which feature would the administrator configure to accomplish this? ``` port forwarding dynamic NAT NAT overload static NAT PAT ```

port forwarding

Which two components are needed to provide a DSL connection to a SOHO? (Choose two.) ``` PPPoE enabled switch CMTS transceiver CM DSLAM ```

DSLAM | transceiver

A network engineer is troubleshooting an unsuccessful PPP multilink connection between two routers. That multilink interface has been created and assigned a number, the interface has been enabled for multilink PPP, and the interface has been assigned a multilink group number that matches the group assigned to the member physical serial interfaces. The physical serial interfaces have also been enabled for PPP multilink. Which additional command should to be issued on the multilink interface? clock rate 4000000 encapsulation ppp ip address 192.168.10.1 255.255.255.252 no ip address

clock rate 4000000

``` What is the international standard defining cable-related technologies? WiMax DOCSIS ADSL PPPoE ```

DOCSIS

Which three statements describe characteristics of converging corporate network architecture? Server applications are housed within the physical corporate network. Users connect their own devices to the corporate network. Data types include data, and video. Users have to use company-owned computers. Networks are borderless.

Data types include data, and video. Server applications are housed within the physical corporate network. Users connect their own devices to the corporate network.

Which inefficient feature of time-division multiplexing does statistical TDM overcome? the unused high speed time slots the buffering of data during peak periods the use of channel identifiers the use of a multiplexer at the transmitter and receiver

the unused high speed time slots

What are three characteristics of SSL VPNs? authentication can be one way authentication uses shared secret or digital certificates an ssl vpn supports web enable applications, e-mail and file sharing connecting may challenge nontechnical users encryption requires key lengths from 40 bits to 256 bits an ssl vpn requires specific configuration of PCs to connect

an ssl vpn supports web enable applications, e-mail and file sharing authentication uses shared secret or digital certificates authentication can be one way

A network engineer is designing an IPsec VPN between Cisco routers for a national bank. Which algorithm assures the highest level of confidentiality for data crossing the VPN? 256bit AES 512 bit RSA SHA-1 3DES

256bit AES

By the use of sequence numbers, which function of the IPsec security services prevents spoofing by verifying that each packet is non-duplicated and unique? anti-replay protection confidentiality data integrity authentication

anti-replay protection

A small law firm wants to connect to the Internet at relatively high speed but with low cost. In addition, the firm prefers that the connection be through a dedicated link to the service provider. Which connection type should be selected? leased line ISDN cable DSL

leased line

How can an administrator configure a Cisco Easy VPN Server to enable the company to manage many remote VPN connections efficiently? by updating the client software in regular intervals by preconfiguring IPsec parameters when deploying the client solution by provisioning dedicated bandwidth for VPN connections by pushing the IPsec security policies to the clients when establishing the tunnel

by pushing the IPsec security policies to the clients when establishing the tunnel

How does QoS improve the effectiveness of teleworking? It provides wireless data transmission over large urban areas. It provides high speed connections over copper wires. It provides better service for VoIP and video conferencing applications. It provides authentication, accounting, and link management features for ISPs.

It provides better service for VoIP and video conferencing applications.

Which two networking technologies enable businesses to use the Internet, instead of an enterprise WAN, to securely interconnect their distributed networks? (Choose two.) DSL remote LANs remote access VPNs site-to-site VPNs Frame Relay

remote access VPNs site-to-site VPNs

What are two benefits of using SNMP traps? (Choose two.) They eliminate the need for some periodic polling requests. They reduce the load on network and agent resources. They can provide statistics on TCP/IP packets that flow through Cisco devices. They can passively listen for exported NetFlow datagrams. They limit access for management systems only.

They eliminate the need for some periodic polling requests. They reduce the load on network and agent resources.

A network engineer has issued the show interfaces serial 0/0/0 command on a router to examine the open NCPs on a PPP link to another router. The command output displays that the encapsulation is PPP and that the LCP is open. However, the IPV6CP NCP is not shown as open. What does the engineer need to configure to open the IPV6CP NCP on the link? Configure an IPv6 address on each interface on the link. Configure PPP multilink interfaces on each router. Issue the compress predictor command on each interface on the link. Configure CHAP authentication on each router.

Configure an IPv6 address on each interface on the link.

What address translation is performed by static NAT? An inside local address is translated to a specified inside global address An inside local address is translated to a specified outside local address An inside local address is translated to a specified outside global address An outside local address is translated to a specified outside global address

An inside local address is translated to a specified inside global address

What are two advantages of using IPv4 NAT? (Choose two.) provides consistent traceability when it is necessary to troubleshoot internal corporate network problems conserves public IP addresses provides consistency when an internal corporate IP addressing scheme is being designed allows maintaining end-to-end addressing increases network performance

conserves public IP addresses provides consistency when an internal corporate IP addressing scheme is being designed

Which network design module would not commonly connect to the service provider edge? Remote Access and VPN E-Commerce Enterprise Branch WAN Site-to-site VPN

Remote Access and VPN

Whichtwo types of devices are specific to WAN environments and are not found ona LAN?(Choose two.) ``` Distribution layer router Broadband modem Core switch Access layer switch CSU/DSU ```

Broadband modem

What is a plausible reason that an employee would become a teleworker for a company? to become employed without having to share files or resources to become employed in a traditional workplace to keep employment during a time of rehabilitation to keep employment without having to adhere to company regulations

to keep employment without having to adhere to company regulations

``` Connecting offices at different locations using the Internet can be economical for a business. What are two important business policy issues that should be addressed when using the Internet for this purpose? (Choose two.) WAN technology bandwidth security privacy addressing ```

addressing | security

What is a primary difference between a company LAN and the WAN services that it uses? The LAN may use a number of different network access layer standards whereas the WAN will use only one standard. Each LAN has a specified demarcation point to clearly separate access layer and distribution layer equipment. The company has direct control over its WAN links but not over its LAN. The company must subscribe to an external WAN service provider.

The company must subscribe to an external WAN service provider.

A technician at a remote location is troubleshooting a router and has emailed partial debug command output to a network engineer at the central office. The message that is received by the engineer only contains a number of LCP messages that relate to a serial interface. Which WAN protocol is being used on the link? HDLC VPN Frame Relay PPP

PPP

What is a feature of physical point-to-point WAN links? Point-to-point links are generally the least expensive type of WAN access. The MAC address is not used in the address field of the point-to-point frame. WAN operations focus primarily on the network layer (OSI Layer 3). Point-to-point WAN services are circuit switched.

The MAC address is not used in the address field of the point-to-point frame.

What are two types of WAN providers? (Choose two.) DNS servers telephone company Internet search engine service satellite service web hosting service

telephone company | satellite service

Which PPP protocol allows a device to specify an IP address for routing over the PPP link? CHAP LCP PAP IPCP

IPCP

In which stage of the troubleshooting process would ownership be researched and documented? Update the user and document the problem. Implement corrective action. Gather symptoms. Isolate the problem.

Implement corrective action.

A corporation is searching for an easy and low cost solution to provide teleworkers with a secure connection to headquarters. Which solution should be selected? dial-up connection leased line connection remote access VPN over the Internet site-to-site VPN over the Internet

leased line connection

Which two statements describe benefits of NAT? (Choose two.) NAT simplifies troubleshooting by removing the need for end-to-end traceability. NAT can provide application port-level multiplexing in order to conserve public IP addresses. NAT allows for easy readdressing when changing ISPs. NAT makes tunneling protocols like IPsec more efficient by modifying the addresses in the headers. NAT provides stateful packet filtering features similar to a firewall. NAT increases router performance by reducing the number of routes needed in the routing table.

NAT provides stateful packet filtering features similar to a firewall. NAT can provide application port-level multiplexing in order to conserve public IP addresses.

What is one drawback to using the top-down method of troubleshooting? trying to decide which device to check first the amount of paperwork that is generated the need to check every device and interface on the network and document them the need to check every possible application problem and document it

the need to check every possible application problem and document it

What are three functions provided by syslog service? (Choose three.) to specify the destination of captured messages to provide traffic analysis to gather logging information for monitoring and troubleshooting to select the type of logging information that is captured to periodically poll agents for data to provide statistics on packets that are flowing through a Cisco device

to gather logging information for monitoring and troubleshooting to select the type of logging information that is captured to specify the destination of captured messages

``` What two advantages are associated with Frame Relay WAN technology when compared with leased lines? (Choose two.) Dedicated data path between sites Fixed and dedicated capacity Flexibility Globally unique DLCI for each site Cost effectiveness ```

Cost effectiveness | Flexibility

Which statement describes an advantage of deploying the Cisco SSL VPN solution rather than the Cisco Easy VPN solution? It provides a stronger authentication mechanism. It provides more network service access. It provides a stronger encryption algorithm. It supports clientless remote access.

It supports clientless remote access.