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ITN - Introduction to networks (273 cards)
1
Q
Which of the following is the name for all computers connected to a network that participate directly in network communication?
A
Hosts
2
Q
When data is encoded as pulses of light, which media is being used to transmit the data?
A
Fiber-optic cable
3
Q
Which two devices are intermediary devices? (Two)
A
Routers and swithces
4
Q
Which connection physically connects the end device to the network?
A
NIC
5
Q
Which connections are specialized ports on a networking device that connect to individual networks?
A
Interface
6
Q
Which type of network topology lets you see the actual location of intermediary devices and cable installation?
A
Physical topology
7
Q
Which network infrastructure provides access to users and end devices in a small geographical area, which is typically a network in a department in an enterprise, a home, or small business?
A
LAN
8
Q
Which network infrastructure might an organization use to provide secure and safe access to individuals who work for a different organization but require access to organization’s data?
A
Extranet
9
Q
Which network infrastructure provides access to other networks over a large geographical area, which is often owned and managed by a telecommunications service provider?
A
WAN
10
Q
When designers follow accepted standards and protocols, which of the four basic characteristics of network architecture is achieved?
A
Scalability
11
Q
Confidentiality, integrity and availability are requirements of which of the four basic characteristics of network architecture?
A
Security
12
Q
With which type of policy, a router can manage the flow of data and voice traffic, giving priority to voice communications if the network experiences congestion?
A
QoS
13
Q
Having multiple paths to a destination is known as redundancy. This is an example of which characteristic of network architecture?
A
Fault tolerance.
14
Q
Which feature is a good conferencing tool to use with others who are located elsewhere in your city, or even in another country?
A
Video communications
15
Q
Which feature describes using personal tools to access information and communicate across a business or campus network?
A
BYOD
16
Q
Which feature contains options such as Public, Private, Custom and Hybrid?
A
Cloud computing
17
Q
Which feature is being used when connecting a device to the network using an electrical outlet?
A
Powerline
18
Q
Which feature uses the same cellular technology as a smartphone?
A
Wireless broadband
19
Q
Which attack slows down or crashes equipment and programs?
A
Denial of service (DoS)
20
Q
Which option creates a secure connection for remote workers?
A
Virtual private network (VPN)
21
Q
Which option blocks unauthorized access to your network?
A
Firewall
22
Q
Which option describes a network attack that occurs on the first day that a vulnerability becomes known?
A
Zero-day or Zero-hour
23
Q
Which option describes malicious code running on user devices?
A
Virus, worm or Trojan horse
24
Q
During a routine inspection, a technician discovered that software that was installed on a computer was secretly collecting data about websites that were visited by users of the computer. Which type of threat is affecting this computer?
A
Spyware
25
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
Extranet
26
A large corporation has modified its network to allow users to access network resources from their personal laptops and smart phones. Which networking trend does this describe?
Bring your own device (BYOD)
27
What is an ISP?
It is an organization that enables individuals and businesses to connect to the Internet.
28
In which scenario would the use of a WISP be recommended?
A farm in a rural area without wired broadcast access
29
What characteristics of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users?
Scalability
30
A college is building a new dormitory on its campus. Workers are digging in the ground to install a new water pipe for the dormitory. A worker accidentally damages a fiber optic cable that connects two of the existing dormitories to the campus data center. Although the cable has been cut, students in the dormitories only experience a very short interruption of network services. What characteristic of the network is shown here?
Fault tolerance
31
What are two characteristics of a scalable network? (Two)
Grows in size without impacting existing users
Suitable for modular devices that allow for expansion
32
Which device performs the function of determining the path that messages should take through internetworks?
A router
33
Which two Internet connection options do not require that physical cables be run to the building? (Two)
Cellular
Satellite
34
What type of network must a home user access in order to do online shopping?
The Internet
35
How does BYOD change the way in which businesses implement networks?
BYOD provides flexibility in where and how users can access network resources
36
An employee wants to access the network of the organization remotely, in the safest possible way. What network feature would allow an employee to gain secure remote access to a company network?
VPN
37
What is the Internet?
It provides connections through interconnected global networks
38
What are two functions of end devices on a network? (Two)
They are the interface between humans and the communication network
They originate the data that flows through the network
39
Which access method would be most appropriate if you were in the equipment room with a new switch that needs to be configured?
Console
40
Which access method would be most appropriate if your manager gave you a special cable and told you to use it to configure a switch?
Console
41
Which access method would be the most appropriate in-band access to the IOS over a network connection?
Telnet/SSH
42
Which access method would be the most appropriate if you call your manager to tell him you cannot access your router in another city over the internet and he provides you with the information to access the router through a telephone connection?
Aux
43
Which IOS mode allows access to all commands and features?
Privileged EXEC mode
44
Which IOS mode are you in if the Switch(config)# prompt is displayed?
Global configuration mode
45
Which IOS mode are you in if the Switch> prompt is displayed?
User EXEC mode
46
Which two commands would return you to the privileged EXEC prompt regardless of the configuration mode you are in? (Two)
CTRL+Z
END
47
What is the command to assign the name "Sw-Floor-2" to a switch?
Hostname Sw-Floor-2
48
How is the privileged EXEC mode access secured on a switch?
Enable secret class
49
Which command enables password authentication for user EXEC mode access on a switch?
Login
50
Which command encrypts all plaintext passwords access on a switch?
Service password-encrpytion
51
Which is the command to configure a banner to be displayed when connecting to a switch?
Banner motd $ Keep out $
52
What is the structure of an IPv4 address called?
Dotted-decimal format
53
How is an IPv4 address represented?
Four decimal numbers between 0 and 255 separated by periods
54
What type of interface has no physical port associated with it?
Switch virtual interface (SVI)
55
Which statement is true about the running configuration file in a Cisco IOS device?
It affects the operation of the device immediately when modified
56
Which two statements are true regarding the user EXEC mode?
The device prompt for this mode ends with the ">" symbol
Only some aspects of the router configuration can be viewed
57
Which type of access is secured on a Cisco router or switch with the enable secret command?
Privileged EXEC
58
What is the default SVI on a Cisco switch?
VLAN1
59
When a hostname is configured through the Cisco CLI, which three naming conventions are part of the guidelines?
The hostname should begin with a letter
The hostname should contain no spaces
The hostname should be fewer than 64 characters in lenght
60
What is the function of the shell in an OS?
It interfaces between the users and the kernel
61
A router with a valid operating system contains a configuration file stored in NVRAM. The configuration file has an enable secret password but no console password. When the router boots up, which mode will display?
User EXEC mode
62
An administrator has just changed the IP address of an interface on an IOS device. What else must be done in order to apply those changes to the device?
Nothing must be done. Changes to the configuration on an IOS device take effect as soon as the command is typed correctly and the Enter key has been pressed
63
Which memory location on a Cisco router or switch will lose all content when the device is restarded?
RAM
64
Why would a technician enter the command copy startup-config running-config?
To copy an existing configuration into RAM
65
Which functionality is provided by DHCP?
Automatic assignment of an IP address to each host
66
Which two functions are provided to users by the context-sensitive help feature of the Cisco IOS CLI?
Determining which option, keyword, or argument is available for the entered command
Displaying a list of all available commands within the current mode
67
Which memory location on a Cisco router or switch stores the startup configuration file?
NVRAM
68
To what subnet does IP address 10.1.100.50 belong if a subnet mask of 255.255.255.0 is used?
10.1.0.0
69
What is the process of converting information into the proper form or transmission?
Encoding
70
Which step of the communication process is concerned with properly identifying the address of the sender and receiver?
Formatting
71
Which three are components of message timing?
Flow control
Access method
Response timeout
72
Which delivery method is used to transmit information to one or more end devices, but not all devices on the network?
Multicast
73
BGP and OSPF are examples of which type of protocol?
Routing
74
Which two protocols are service discovery protocols?
DNS
DHCP
75
What is the purpose of the sequencing function in network communication?
To uniquely label transmitted segments of data for proper reassembly by the receiver
76
This protocol is responsible for guaranteeing the reliable delivery of information:
TCP
77
UDP and TCP belong to which layer of the TCP/IP protocol?
Transport
78
Which two protocols belong in the TCP/IP model application layer?
DNS
DHCP
79
Which protocol operates at the network access layer of the TCP/IP model?
Ethernet
80
Which of the following are protocols that provide feedback from the destination host to the source host regarding errors in packet delivery? (Two)
ICMPv4
ICMPv4
81
A device receives a data link frame with data and processes and removes the Ethernet information. What information would be the next to be processed by the receiving device?
IP at the internet layer
82
Which services are provided by the internet layer of the TCP/IP protocol suite? (Three)
Routing protocols
Messaging
Internet protocol
83
True or false. Standards organizations are usually vendor-neutral.
True
84
This standard organization is concerned with the Request for Comments (RFC) documents that specify new protocols and update existing ones:
Internet Engineering Task Force (IETF)
85
This standards organization is responsible for IP address allocation and domain name management:
Internet Assigned Numbers Authority (IANA)
86
What types of standards are developed by the Electronics Industries Alliance (EIA)?
Electric wiring and connectors
87
What is the process of dividing a large data stream into smaller pieces prior to transmission?
Segmentation
88
What is the PDU associated with the transport layer?
Segment
89
Which protocol stack layer encapsulates data into frames?
Data link
90
What is the name of the process of adding protocol information to data as it moves down the protocol stack?
Encapsulation
91
True or false? Frames exchanged between devices in different IP networks must be forwarded to a default gateway.
True
92
True or false? The right-most part of an IP address is used to identify the network that a device belongs to.
False
93
What is used to determine the network portion of an IPv4 address?
Subnet mask
94
Which of the following statements are true regarding network layer and data link layer addresses? (Three)
Network layer addresses are logical and data link addresses are expressed as 12 hexadecimal digits
Data link layer addresses are physical and network layer addresses are logical
Network layer addresses are either 32 or 128 bits in length
95
What is the order of the two addresses in the data link frame?
Destination MAC, source MAC
96
True or false? Data link addresses are physical so they never change in the data link frame from source to destination.
False
97
Which three acronyms/initialisms represent standards organizations? (Three)
IANA
IETF
IEEE
98
What type of communication will send a message to all devices on a local area network?
Broadcast
99
In computer communication, what is the purpose of message encoding?
To convert information to the appropriate form of transmission
100
Which message delivery option is used when all devices need to receive the same message simultaneously?
Broadcast
101
What are two benefits of using a layered network model?
It prevents technology in one layer from affection other layers
It assists in protocol design
102
What is the purpose of protocols in data communications?
Providing the rules required for a specific type of communication to occur
103
Which logical address is used for delivery of data to a remote network?
Destination IP address
104
What is the general term that is used to describe a piece of data at any layer of a networking model?
Protocol data unit
105
Which two protocols function at the internet layer? (Two)
IP
ICMP
106
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
Transport
107
Which type of communication will send a message to a group of host destinations simultaneously?
Multicast
108
What process is used to receive transmitted data and convert it into a readable message?
Decoding
109
What is done to an IP packet before it is transmitted over the physical medium?
It is encapsulated in a Layer 2 frame
110
What process is used to place one message inside another message for transfer from the source to the destination?
Encapsulation
111
A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?
HTTP, TCP, IP, Ethernet
112
True or false? The physical layer is only concerned with wired network connections?
False
113
True or false? When a frame is encoded by the physical layer, all bits are sent over the media at the same time.
False
114
The physical layer of the receiving device passes bits up to which higher level layer?
Data link
115
What PDU is received by the physical layer for encoding and transmission?
Frame
116
Which media uses patterns of microwaves to represent bits?
Wireless
117
Which media uses patterns of light to represent bits?
Fiber-optic
118
Which media uses electrical pulses to represent bits?
Copper
119
Which of these is the name for the capacity of a medium to carry data?
Bandwidth
120
Which of these is a measure of the transfer of bits across the media?
Throughput
121
Which of the following attaches antennas to wireless devices? It can also be bundled with fiber-optic cabling for two-way data transmission.
Coaxial
122
Which of the following counters EMI and RFI by using shielding techniques and special connectors?
STP
123
Which of the following is the most common network media?
UTP
124
Which of the following terminates with BNC, N type and F type connectors?
Coaxial
125
Which of the following fiber-optic cable types can help data travel approximately 500 meters?
Multimode
126
Which of the following fiber-optic cable types use light emitting diodes (LEDs) as a data light source transmitters?
Multimode
127
Which of the following fiber-optic cable types use lasers in a single stream as a data light source transmitter?
Single-mode
128
Which of the following fiber-optic cable types is used to connect long-distance telephony and cable TV applications?
Single-mode
129
Which of the following fiber-optic cable types can travel approximately 100 km?
Single-mode
130
Which of the following fiber-optic cable types is used within a campus network?
Multimode
131
True or false? Wireless is not well suited for enterprise networks.
False
132
True or false? Wireless LANs operate in full-duplex allowing all devices to send or receive data at the same time so the number of users does not impact performance.
False
133
Which of the following wireless standards is best suited for industrial and IoT environments?
Zigbee
134
Which of the following wireless standards is used for Personal Area Networks (PANs) and allows devices to communicate over distances of 1 to 100 meters?
Bluetooth
135
A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
Physical layer
136
What type of cable is used to connect a workstation serial port to a Cisco router console port?
Rollover
137
Why are two strands of fiber used for a single fiber optic connection?
They allow for full-duplex connectivity
138
Which procedure is used to reduce the effect of crosstalk in copper cables?
Twisting opposing circuit wire pairs together
139
What is one advantage of using fiber optic cabling rather than copper cabling?
It is able to carry signals much farther than copper cabling
140
A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
The end-user device needs mobility when connecting to the network
141
Which type of UTP cable is used to connect a PC to a switch port
Straight-through
142
What is the definition of bandwidth?
The amount of data that can flow from one place to another in a given amount of time
143
Which statement correctly describes frame encoding?
It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bits
144
What is a characteristics of UTP cabling?
Cancellation
145
A wireless LAN is being deployed inside the new one room office that is occupied by the park ranger. The office is located at the highest part of the national park. After network testing is complete, the technicians report that the wireless LAN signal is occasionally affected by some type of interference. What is a possible cause of the signal distortion?
The microwave oven
146
What is the purpose of the OSI physical layer?
Transmitting bits across the local media
147
Which characteristics describes crosstalk?
The distortion of the transmitted messages from signals carried in adjacent wires
148
What is indicated by the term throughput?
The measure of the bits transferred across the media over a given period of time
149
Which standards organization oversees development of wireless LAN standards?
IEEE
150
Which is the binary equivalent to the 192.168.11.10 IP address?
11000000.10101000.00001011.00001010
151
Which of the following is the binary equivalent of the 172.16.31.30 IP address?
10101100.00010000.00011111.00011110
152
Which is the hexadecimal equivalent of 202?
CA
153
Which is the hexadecimal equivalent of 254?
FE
154
Which is the decimal equivalent of A9?
169
155
Which of the following is the decimal equivalent of 7D?
125
156
What is the binary representation of the decimal number 173?
10101101
157
Given the binary address of 11101100 00010001 00001100 00001010, which address does this represent in dotted decimal format?
236.17.12.10
158
How many binary bits exist within an IPv6 address?
128
159
What is the binary equivalent of the decimal number 232?
11101000
160
Which two statements are correct about IPv4 and IPv6 addresses? (Two)
IPv4 addresses are 32 bits in length
IPv6 addresses are represented by hexadecimal numbers
161
Which IPv4 address format was created for ease of use by people and is expressed as 201.192.1.14?
Dotted decimal
162
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
203.0.113.211
163
What is the decimal equivalent of the binary number 10010101?
149
164
What is the decimal equivalent of the hex number 0x3F?
63
165
What is the dotted decimal representation of the IPv4 address which is represented as the binary string 00001010.01100100.00010101.00000001?
10.100.21.1
166
What is the decimal equivalent of 0xC9?
201
167
Which is a valid hexadecimal number?
f
168
What is the binary representation of 0xCA?
11001010
169
How many bits are in an IPv4 address?
32
170
What is another name for the OSI data link layer?
Layer 2
171
The IEEE 802 LAN/MAN data link layer consists of which two sublayers? (Two)
Logical Link Control
Media Access Control
172
What is the responsibility of the MAC sublayer?
Provides the method to get the frame on and off the media
173
What Layer 2 function does a router perform? (Three)
Accepts a frame from a medium
De-encapsulates the frame
Re-encapsulates the packet into a new frame
174
The media access control method used depends on which two criteria?
Media sharing
Topology
175
Which organization defines standards for the network access layer (i.e., the OSI physical and data link layers)?
IEEE
176
What identifier is used at the data link layer to uniquely identify an Ethernet device?
MAC address
177
What attribute of a NIC would place it at the data link layer of the OSI model?
MAC address
178
Which two engineering organizations define open standards and protocols that apply to the data link layer?
International telecommunication union (ITU)
Institute of electrical and electronics engineers (IEEE)
179
What is true concerning physical and logical topologies?
Logical topologies refer to how a network transfers data between devices
180
What method is used to manage connection-based access on a wireless network?
CSMA/CA
181
A technician has been asked to develop a physical topology for a network that provides a high level of redundancy. Which physical topology requires that every node is attached to every other node on the network?
Mesh
182
Which statement describes the half-duplex mode of data transmission?
Data that is transmitted over the network flows in one direction at a time
183
Which is a function of the Logical Link Control (LLC) sublayer?
To identify which network layer protocol is being used
184
Which data link layer media access control method does Ethernet use with legacy Ethernet hubs?
CSMA/CD
185
What are the two sublayers of the OSI model data link layer?
LLC
MAC
186
Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?
Data link
187
What type of physical topology can be created by connecting all Ethernet cables to a central device?
Star
188
What are two services performed by the data link layer of the OSI model?
It provides media access control and performs error detection
It accepts Layer 3 packets and encapsulates them into frames
189
Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?
The use of full-duplex capable Layer 2 swithces
190
Which two characteristics describe Ethernet technology?
It uses unique MAC addresses to ensure that data is sent to the appropriate destination
It is supported by IEEE 802.3 standards
191
What statement describes a characteristics of MAC addresses?
They must be globally unique
192
What is the special value assigned to the first 24 bits of a multicast MAC address transporting an IPv4 packet?
01-00-5E
193
What will a host on an Ethernet network do if it receives a frame with a unicast destination MAC address that does not match its own MAC address?
It will discard the frame
194
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
Switch
195
Which network device has the primary function to send data to a specific destination based on the information found in the MAC address table?
Switch
196
Which function or operation is performed by the LLC sublayer?
It communicates with upper protocol layers
197
What happens to runt frames received by a Cisco Ethernet switch?
The frame is dropped
198
What addressing information is recorded by a switch to build its MAC address table?
The source Layer 2 address of incoming frames
199
What is auto-MDIX?
A feature that detects Ethernet cable type
200
What type of address is 01-00-5E-0A-00-02?
An address that reaches a specific group of hosts
201
Which statement is true about MAC addresses?
The first three bytes are used by the vendor assigned OUI
202
What are the two sizes (minimum and expected maximum) of an Ethernet frame?
64 bytes
1518 bytes
203
Which two functions or operations are performed by the MAC sublayer?
It is responsible for Media Access Control
It adds a header and trailer to form an OSI Layer 2 PDU
204
Which command can be used on a Windows host to display the routing table?
netstat -r
205
What information is added during encapsulation at OSI Layer 3?
Source and destination IP address
206
How does the network layer use the MTU value?
The MTU is passed to the network layer by the data link layer
207
Which characteristics describes an IPv6 enhancement over IPv4?
The IPv6 header is simpler than the IPv4 header is, which improves packet handling
208
Which statement accurately describes a characteristic of IPv4?
IPv4 has a 32-bit address space
209
When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?
Destination IP address
210
A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
The packet will be sent directly to the destination host
211
Which IPv4 address can a host use to ping the loopback interface?
127.0.0.1
212
When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if neccessary?
Upper-layer connection-oriented protocols keep track of the data receives and can request retransmission from the upper-level protocols on the sending host
213
What was the reason for the creation and implementation of IPv6?
To relieve IPv4 address depletion
214
Which information is used by routers to forward a data packet toward its destination?
Destination IP address
215
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination address
216
Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped?
Hop Limit
217
Which router component holds the routing table, ARP cache, and running configuration file?
RAM
218
What type of information is contained in an ARP table?
IPv4 address to MAC address mappings
219
A PC is configured to obtain an IPv4 address automatically from network 192.168.1.0/24. The network administrator issues the arp -a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?
This is a static map entry
220
A cybersecurity analyst believes an attacker is spoofing the MAC address of the default gateway to perform a man-in-the-middle attack. Which command should the analyst use to view the MAC address a host is using to reach the default gateway?
arp -a
221
What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?
It forwards the frame out of all ports except for the port at which the frame was received
222
Which two ICMPv6 messages are used during the Ethernet MAC address resolution process?
Neighbor advertisement
Router solicitation
223
How does the ARP process use an IPv4 address?
To determine the MAC address of a device on the same network
224
What is one function of the ARP protocol?
Resolving an IPv4 address to a MAC address
225
Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?
It sends the frame to all ports except the port on which it receives the frame
226
What addresses are mapped by ARP?
IPv4 address to a destination MAC address
227
When an IPv4 packet is sent to a host on a remote network, what information is provided by ARP?
The MAC address of the router interface closest to the sending host
228
The ARP table in a switch maps which two types of address together?
Layer 3 address to a Layer 2 address
229
What is the purpose of ARP in an IPv4 network?
To obtain a specific MAC address when an IP address is known
230
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
231
A router boots and enters setup mode. What is the reason for this?
The configuration file is missing from NVRAM (10.4.5, PITANJE 1)
232
Which command is used to encrypt all passwords in a router configuration file?
Router_A (config) # service password-encryption
233
Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following commands achieves the goal of providing the highest level of security?
enable secret trustknow1
234
What will be the response from the router after the command "router(config)# hostname portsmouth" is entered?
Portsmouth(config)#
235
An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?
Router(config)# line console 0
Router(config-line)# password cisco
Router(config-line)# login
236
Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?
show ip interface brief
237
Which CLI mode allows users to access all device commands, such as those used for configuration, management and troubleshooting?
Privileged EXEC mode
238
What is the purpose of the startup configuration file on a Cisco router?
To contain the commands that are used to initially configure a router on startup
239
Which characteristics describes the default gateway of a host computer?
The logical address of the router interface on the same network as the host computer
240
What is the purpose of the banner motd command?
It provides a way to make announcements to those who log in to a router
241
A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
Any line configuration mode
242
What is stored in the NVRAM of a Cisco router?
The startup configuration
243
Which statement regarding the service password-encryption command is true?
As soon as the service password-encryption command is entered, all currently set passwords formerly displayed in plain text are encrpyted
244
What is the prefix length notation for the subnet mask 255.255.255.224?
/27
245
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
62
246
Which subnet mask would be used if 5 host bits are available?
255.255.255.224
247
A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?
4
248
What subnet mask is represented by the slash notation /20?
255.255.240.0
249
Which statement is true about variable-length subnet masking?
The size of each subnet may be different, depending on the requirements
250
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
To identify the network address of the destination network
251
How many usable IP addresses are available on the 192.168.1.0/27 network?
30
252
Which subnet mask would be used if exactly 4 host bits are available?
255.255.255.240
253
Which two parts are components of an IPv4 address?
Host portion
Network portion
254
If a network device has a mask of /26, how many IP addresses are available for hosts on this network?
62
255
What does the IP address 172.17.4.250/24 represent?
Host address
256
If a network device has a mask of /28, how many IP addresses are available for hosts on this network?
14
257
What is the purpose of the subnet mask in conjunction with an IP address?
To determine the subnet to which the host belongs
258
A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.224. How many usable host addresses will this subnet provide?
30
259
What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234
2001:DB8:0:AB00::1234
260
What is the prefix associated with the IPv6 address 2001:DB8:D15:EA:CC44::1/64?
2001:DB8:D15:EA::/64
261
What type of address is automatically assigned to an interface when IPv6 is enabled on that interface?
Link-local
262
Which IPv6 network prefix is only intended for local links and can not be routed?
FE80::/10
263
What is the purpose of the command ping ::1?
It tests the internal configuration of an IPv6 host
264
What is the interface ID of the IPv6 address 2001:DB8::1000:A9CD:47FF:FE57:FE94/64?
A9CD:47FF:FE57:FE94
265
What is the network address for the IPv6 address 2001:DB8:AA04:B5::1/64?
2001:DB8:AA04:B5::/64
266
Which address type is not supported in IPv6?
Broadcast
267
What is indicated by a successful ping to the ::1 IPv6 address?
IP is properly installed on the host
268
What is the most compressed representation of the IPv6 address 2001:0db8:0000:abcd:0000:0000:0000:0001?
2001:db8:0:abcd::1
269
What is the minimum configuration for a router interface that is enabled for IPv6?
To have a link-local IPv6 address
270
At a minimum, which address is required on IPv6-enabled interfaces?
Link-local
271
What are three parts of an IPv6 global unicast address?
A subnet ID that is used to identify networks inside of the local enterprise site
A global routing prefix that is used to identify the network portion of the address that has been provided by an ISP
An interface ID that is used to identify the local host on the network
272
Your organization is issued the IPv6 prefix of 2001:db8:130f::/48 by your service provider. With this prefix, how many bits are available for your organization to create /64 subnetworks if interface ID bits are not borrowed?
16
273
