Tenta 2021-05-26 Flashcards by Magnus Viktorsson

“Which command sends a packet that states ““if you receive this packet, and it’s addressed to you, please reply back””?
O Nmap
0 Ping
O Telnet
O Tracert”

Ping

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“Which technology is commonly implemented inside a service provider’s (SP) network and provides an Ethemet point-to-point connection between customer devices?

0 eBGP”
EoMPLS
LEased Line
Frame Relay
ATM

EoMPLS

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“The Internet is essentially one big network
0 OSI
0 iBGP
0 EGP
0 TCP/IP
O Ethernet”

TCP/IP

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“Which protocol does the ping command use to test connectivity?
0 ICMP
Q 1Pv6
Q TCP/IP
Q UDP”

ICMP

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“Review the following output of the ping command. What does this output tell us about 192.168.100.4?
Pinging 192.168.100.4 with 32 bytes of data:
Request timed out. Request timed out. Request timed out.
Reply from 192.168.13.36: Destination host unreachable. Ping statistics for 192.168.100.4:
Packets: Sent= 4, Received = 1, Lost = 3 (75% loss).
O The host is not reachable from this device.
O The host is online, but not accessible from this device.
O All packets successfully reached the host.
O Some packets were able to reach the host, while others were dropped.”

The host is not reachable from this device.

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“You just unpacked a brand new Cisco 2960 switch. Which ports/interfaces are ready to connect to and be used to set up the switch?
0 VTY
0 AUX
O Console
O fa0/1”

Console

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“Which layer of the TCP/IP model defines the rules for data packet recovery?
O Transport
O Internet
O Application
O Data link”

Transport

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“Which ofthe following commands would you issue to move from the User EXEC mode to the Privileged EXEC mode?
O open
O enable
O enter
O activate”

enable

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“You are having trouble remembering part of the correct format of a command. Which of the commands would give you help on the correct format of the parameters?
0 command *
0 command ?
0 command?
0 help

command ?

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“The process of sending frames out all other interfaces, except the interface on which the frame arrived, is called
O Forwarding O Replication O Flooding O Copying”

Flooding

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“When connecting multiple switches with redundant links, which of the following protocols helps to ensure that you will have a loop-free Ethemet network?
0 STP
0 HTTP
0 TCP
0 ARP”

STP

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“When STP has placed a port in the blocked state, this port
O Will receive and forward data frames only
O Will receive data frames but cannot forward them
O Will forward data frames but cannot receive them
O Cannot receive or forward data frames”

Will receive data frames but cannot forward them

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“Which of the following is the goal of establishing a loop-free environment?
O This allows a switch to learn MAC addresses.
O This allows a switch to forward only one copy of the message to the destination.
O This allows the switch to examine the source MAC address of each frame.
O This allows the switch to decide whether or not to forward a frame.”

This allows a switch to forward only one copy of the message to the destination.

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“What are the two main services provided by the network layer of the TCP/IP model?
O Compression
O Addressing
O Routing
O Reliability
O Encryption

Adressing, Routing

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“What is the name used to identify a virtual NIC type of device that exists on Cisco switches to assign IP information to specific VLANs
O svc
0 PVC
0 VRF
0 SVI”

SVI

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“An engineer has initiated the ping command from Cisco 10S. The command showed an output of five exclamation points (!!!!!). What does this tell the engineer?

O Same af the messages received a reply, but otbers timed out.
O None af the messages received a reply.
O The syntax af the command was entered incorrectly.
O All five echo messages received a reply.”

O All five echo messages received a reply.”

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“Which of the following commands is used to enable console password security using a simple password?”

O line eon 0
O login
O password password-value
O line vty O 15

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“An engineer initiated a Cisco JOS ping and received an output of two exclamation points, one period, followed by another two exclamation points (!!.!!). What does this output tel1 the engineer?

O None of the echo messages received a reply.
O The third echo message is the only one to receive a reply.
O The third echo message timed out, but all the others received a reply.
O All five of the echo messages received a reply.”

The third echo message timed out, but all the others received a reply.

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Fa0/1 connected 1 half a-100 10/100BaseTX
Fa0/2 notconnect 1 auto auto 10/l00BaseTX
Fa0/3 notconnect 1 auto auto 10/l00BaseTX
Fa04 notconnect 1 auto auto 10/100BaseTX
Fa05 notconnect 1 auto auto 10/100BaseTX

Refer to the above. From the output shown from the show interface status command, what can be determined about how speed and duplex were assigned to interface F0/1? Choose two
options.”

O Duplex was autonegotiated.
O Speed was not autonegotiated.
O Duplex was not autonegotiated.
O Speed was autonegotiated.

O Duplex was not autonegotiated.
O Speed was autonegotiated.

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“When using the no speed command on an interface, what is the resulting change made?

O The speed defaults to the lowest possible value.
O The speed setting is no longer recorded for the interface. O The speed setting defaults to its automatic configuration. O The speed for the interface is set to 0, disabling it.”

O The speed setting defaults to its automatic configuration.

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“What does it rnean when an interface does NOT display configuration settings when using the
show running-config and show startup-config cornrnands?

O It means the configuration is running with default settings.
O It means the interface is not active.
O It means the interface is configured the same as the previous entry.
O It means the interface is configured the same as the following entry.”

O It means the configuration is running with default settings.

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“The process of forwarding an IP packet from host to host is known as
O Delivery
O Switching
O Routing
O Sending”

Routing

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“Which command disallows the use of trunking mode on a port?
O switchport mode trunk disable
O switchport mode dynamic desirable
O switchport mode access
O switchport mode dynamic auto
O switchport mode dynamic disable”

switchport mode access

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What is the name of the process that is defined by IEEE 802.1Q to relay traffic from multiple VLANs?

0 VLAN staging
0 Broadcast forwarding
0 Switchport mode
0 VLAN tagging

VLAN tagging

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"What is one way in which STP protects a redundant Ethernet network?" O Acts as a type of firewall O Protects against frames looping the Layer 2 domains O Reduces collision domain size O ldentifies and deletes invalid MAC to IP address mapping

Protects against frames looping the Layer 2 domains

"How is a root bridge/switch determined? O All the switches in the internetwork send out hello BPDUs, and the switch that has the aggregate least number of hops to all the other switches becomes the roat. O All the switches send out hello BPDUs, and the switch with the lowest bridge ID becomes the roat. O All the switches send out hello BPDUs, and the switch with the highest bridge ID becomes the roat. O The switches send out hello BPDUs, and the switch with the mast direct connected switches becomes the roat. O The core network switch becomes the roat."

All the switches send out hello BPDUs, and the switch with the lowest bridge ID becomes the roat.

"What name is given to the process of enclosing data with headers and trailers as the data is moved down the TCP/IP model? 0 Condensing O lnclosing O Encryption O Encapsulation"

Encapsulation

"Switch forwarding logic dictates that a switch flood broadcasts out all switchports that are in the same _____ , except the switchport in which the frame arrived. O Area O Management domain O Process Q VLAN"

VLAN

"What is the difference between EtherChannel auto and desirable modes? O Auto will always initiate autonegotiation, whereas desirable will not. O Desirable will always initiate autonegotiation, whereas auto will not. O Auto will always try to negotiate to an access port first before trying other modes. O Desirable mode will not function and put the port into errdisable mode unless both sides of the link are in desirable." "O Auto mode will not function and put the port inta errdisable mode unless both sides of the link are in auto."

O Desirable will always initiate autonegotiation, whereas auto will not.

"Your boss has asked you to tel1 him how many usable subnets and hosts a Class C network with the IP address and mask of 192.168.10.0/28 can have. How should you respond? 0 16 subnets and 16 hosts 0 16 subnets and 14 hosts 0 30 subnets and 6 hosts 0 62 subnets and 2 hosts"

16 subnets and 14 hosts

"lf you wanted to have 12 subnets starting with a Glass C network ID, which subnet mask would you use?" 0 "255.255.255.252" 0 "255.255.255.248" 0 "255.255.255.240" 0 "255.255.255.254"

255.255.255.240

"How many subnets and hosts are provided by the network 192.168.254.0/26? O 4 networks with 64 hosts O 4 networks with 62 hosts O 254 networks with 62 hosts O 2 network with 62 hosts"

O 4 networks with 62 hosts

"Given the IP address 200.1.1.130 and the mask 255.255.255.224, what is the subnet number?" 0 "200.1.1.32" 0 "200.1.1.64" 0 "200.1.1.96" 0 "200.1.1.128"

200.1.1.128

"What is the broadcast address of 192.168.192.10/29? 0 192.168.192.255" 0 "192.168.192.15" 0 "192.168.192.31" 0 "192.168.192.7"

"192.168.192.15"

"What is the subnet number of a host with an IP address of 172.16.66.0/21? 0 "172.16.36.0" 0 "172.16.48.0" 0 "172.16.64.0" 0 "172.16.0.0"

172.16.64.0

"Which of the following lists the prefix (CIDR) format equivalent of 255.254.0.0?" 0 "/12" 0 "/13" 0 "/14" 0 "/15"

"Which of the following is the dotted-decimal notation (DDN) equivalent of /11? 0 255.128.0.0 0 255.192.0.0 0 255.224.0.0 0 255.240.0.0

255.224.0.0

"As the network engineer, you are given the following IP address information: 172.16.8.159 / 255.255.255.192. Identify the broadcast address." 0 "172.16.255.255" 0 "172.16.8.127" 0 "172.16.8.191" 0 "172.16.8.255"

172.16.8.191

"Which of the following is the resident subnet for the IP address 192.168.10.33/29?" 0 "192.168.10.24" 0 "192.168.10.32" 0 "192.168.10.40" 0 "192.168.10.48"

192.168.10.32

"Which of the following is the broadcast address for the subnet in which IP address 200.10.5.68/28 resides?" 0 "200.10.5.31" 0 "200.10.5.47" 0 "200.10.5.79" 0 "200.10.5.95"

200.10.5.79

"A failed ping can point to which of the following potential root causes? O IP addressing problems 0 DHCP problems 0 A and B O None of the above"

A and B

"Which Cisco IOS command can be used to display a list ofbasic IP information with a single line per interface, including IP address and interface status? O show interfaces O show interfaces brief O show ip interface brief O show ip interface"

show ip interface brief

"As the network engineer, you are configuring the Fast Ethemet interface. You have issued the following command to the fa0/0 interface: ip address 200.16.24.1 255.255.255.0. Which of the following must be TRUE before the router can add this information to its routing table? Choose 2 answers. D The interface status codes for the interface must be in the Up and Up condition. D The interface must be administratively turned off. D The interface must have the no shutdown command issued. 0 The router must be able to communicate with its neighbor first."

The interface status codes for the interface must be in the Up and Up condition. The interface must have the no shutdown command issued.

"What is the process of removing the Layer 2 header and trailer information to reveal the Layer 3 packet? O De-encapsulation O Encapsulation O Encryption O Decryption"

De-encapsulation

"Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two answers.) D Ethernet 0 HTTP 0 IP 0 UDP 0 SMTP 0 TCP"

UDP, TCP

"In the LAN fora small office, same user devices connect to the LAN using a cable, while others connect using wireless technology (and no cable). Which of the following is true regarding the use of Ethernet in this LAN? O Only the devices that use cables are using Ethernet O Only the devices that use wireless are using Ethernet O Both the devices using cables and those using wireless are using Ethernet. O None af the devices are using Ethernet."

Only the devices that use cables are using Ethernet

"Which of the following does a router normally use when making a decision about routing TCP/IP packets? O Destination MAC address O Source MAC address O Destination IP address O Source IP address O Destination MAC and IP address"

Destination IP address

"Which of the following is a difference between Telnet and SSH as supported by a Cisco switch? O SSH encrypts the passwords used at login, but not other traffic; Telnet encrypts nothing. O SSH encrypts all data exchnage, including login passwords; Telnet encrypts nothing. O Telnet is used from Microsoft operating systems, and SSH is used from UNIX and Linux operating systems. O Telnet encrypts only password exchanges; SSH encrypts all data exchanges."

SSH encrypts all data exchnage, including login passwords; Telnet encrypts nothing.

"Which of the following statements describes part of the process of how a switch decides to forward a frame destined for a known unicast MAC address? O It campares the unicast destination address to the bridging, or MAC address, table. O It campares the unicast source address to the bridging, or MAC address, table. O lf forwards the frame out all interfaces in the same VLAN except for the incoming interface. O It campares the destination IP address to the destination MAC address. O It campares the frame's incoming interface to the course MAC entry in the MAC address table."

It campares the unicast destination address to the bridging, or MAC address, table.

"A Layer 2 switch configuration places all its physical ports inta VLAN 2. The IP addressing plan shows that the address 172.16.2.250 (with mask 255.255.255.0) is reserved for use by this new LAN switch and that 172.16.2.254 is already configured on the router connected to that same VLAN. The switch needs to support SSH connections inta the switch from any subnet in the network. Which of the following commands are part of the required configuration in this case? (Choose two answers.) O The ip address 172.16.2.25 255.255.255.0 command in interface vlan 1 configuration mode. O The ip address 172.16.2.250 255.255.255.0 command in interface vlan 2 configuration mode. O The ip default-gateway 172.16.2.254 command in global configuration mode. O The switch cannot support SSH because all its ports connect to VLAN 2, and the IP address must be configured on interface VLAN 1."

The ip address 172.16.2.250 255.255.255.0 command in interface vlan 2 configuration mode. The ip default-gateway 172.16.2.254 command in global configuration mode.

"Which of the following is a routing protocol designed and intended for use between different autonomous systems? 0 IGP 0 EGP 0 BGP 0 IXR"

EGP

"Which term does OSPF use to describe the special OSPF area to which all other areas must connect? O Area border router O Backbone area 0 Interarea 0 Area

Backbone area

"Which Cisco IOS command is used to enable a router subinterface with 802.1Q and associate it with a specific VLAN? 0 vlan vlan-id 0 encapsulation dot1q vlan-id 0 encapsulation vlan vlan-id 0 dot1q vlan-id"

encapsulation dot1q vlan-id

"Which Cisco ios command can be used to display the ROAS configuration on a router? O show roas O show vlan O show vlans O show interfaces vlan"

show vlans

"Which of the following troubleshooting tools uses the TTL Exceeded messages to identify routers? O ping O telnet 0 SSH O tracert"

tracert

"Which command sends a packet that states ""if you receive this packet, and it's addressed to you, please reply back""? O Nmap O ping O Telnet O Tracert"

ping

"What term does OSPF use to reference a router that has interfaces in more than one area? 0 ASBR O Backbone O Interna! 0 ABR"

ABR

"Which of the following routing protocols is considered to use link-state logic? 0 RIPv1 0 RIPv2 0 EIGRP 0 OSPF"

OSPF

"Which of the following routing protocols use a metric that is, by default, at least partially affected by link bandwidth? (Choose two answers.) 0 RIPv1 O RIPv2 0 EIGRP 0 OSPF"

EIGRP OSPF

"Which of the following interior routing protocols support VLSM? (Choose three answers.)"

RIPv2 EIGRP OSPF

Tenta 2021-05-26 Flashcards

(61 cards)