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a. 129.0.0.1
b. 255.255.255.0
c. 192.168.0.1
d. 169.254.1.120
e. 172.16.2.18
72. Used side-by-side with Kerberos, what service does LDAP provide Active
Directory?
a. Accounting
b. Encryption
c. Auditing
d. Authorization
e. Authentication
73. In the following figure, if switch A suffers a failure, how will this failure
affect nodes 1 through 3?
[[Insert Figure D-Q73 here]]
a. They will be unable to access the Internet or nodes 7 through 9.
b. They will be unable to access the Internet or any other nodes on the LAN.
c. They will only be unable to access the Internet.
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d. They will be unable to access nodes 4 through 9.
e. Their connectivity will not be affected.
74. A file server on your network is running Ubuntu Server. You need to remote
into it to make some configuration changes so that a new employee can access
a group of files. The files are stored on an encrypted hard drive. Which of the
following utilities will give you secure access to the server to make your
reconfigurations?
a. RDP
b. SSH
c. SSL
d. SFTP
e. Telnet
75. You want to add the five virtual machines that exist on your host machine to
the Staff VLAN at your office. Which of the following must your host
machine’s NIC support?
a. CSMA/CD
b. Channel bonding
c. MIMO
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d. Trunking
e. OSPF
76. A regional bank manager asks you to help with an urgent network problem.
Because of a sudden and severe network performance decline, the manager
worries that the bank’s network might be suffering a DoS attack. Viewing
which of the following types of network documentation would probably give
you the quickest insight into what’s causing this problem?
a. Wiring schematic
b. Firewall log
c. Logical network diagram
d. The main file server’s system log
e. Physical network diagram
77. While troubleshooting a computer’s connection to the network, you enter a
command at the Command Prompt and see the following output. Which
command did you enter?
[[Insert Figure D-Q77 here]]
a. nslookup
b. netstat
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c. arp -a
d. tracert google.com
e. ping 8.8.8.8
78. Which of the following commands lists active TCP/IP connections on both
Windows and Linux computers?
a. nslookup
b. netstat
c. pathping
d. ipconfig
e. iwconfig
79. On which of the following devices should you change the default
administrative username and password when adding each device to your
network? Choose all that apply.
a. IP security camera
b. Router
c. Programmable thermostat
d. Unmanaged switch
e. Printer
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80. Which of the following transmission media is most resistant to interference?
a. Z-wave transmissions
b. Fiber-optic cable
c. STP cable
d. 802.11ac transmissions
e. Coaxial cable
81. Which of the following cellular technologies uses time division to separate
phone calls and Internet connections on a single channel?
a. HSPA+
b. GSM
c. LTE
d. CDMA
e. LTE-Advanced
82. While troubleshooting a printer problem, you figured out the printer’s static
IP address had not been reserved on the DHCP server and so was mistakenly
issued to a workstation. This caused a conflict, and prevented users from
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accessing the printer. You have now configured the reservation in DHCP.
What should you do next?
a. Document the problem and your solution in your company’s knowledge
base.
b. Close the service ticket.
c. Report your findings to the network admin.
d. Check that the printer is plugged into the wall outlet.
e. Confirm that users can now print successfully.
83. How does STP prevent or stop broadcast storms?
a. It examines the source IP address field in each broadcast packet and
temporarily blocks traffic from that address.
b. It enables routers to choose one set of best paths and ensures that alternate
paths are used only when the best paths are obstructed.
c. It enables switches to calculate paths that avoid potential loops and
artificially blocks the links that would complete a loop.
d. It enables firewalls to keep access lists that name hosts known for high-
volume broadcast traffic and block those hosts from transmitting to the
network.
e. It helps routers define the boundaries of a broadcast domain.
84. What is the function of protocols and services at the Network layer of the
OSI model?
a. To manage the flow of communications over a channel
b. To add segmentation and assembly information
c. To encode and encrypt data
d. To add logical addresses and properly route data
e. To apply electrical pulses to the wire
85. You have created a new web server on a computer running the Linux
operating system. Some of the modules aren’t loading correctly, and services
are encountering errors. Which of the following applications should you
check for information on these errors?
a. Event Viewer
b. IDS
c. Packet sniffer
d. Network Monitor
e. Syslog
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86. Your 1000Base-T network is wired following the TIA/EIA 568b standard. As
you make your own patch cable, which wires do you crimp into pins 1 and 2
of the RJ-45 connector?
a. White with green stripe and green
b. White with brown stripe and brown
c. White with blue stripe and blue
d. White with red stripe and red
e. White with orange stripe and orange
87. Which authentication technology issues tickets to give users access to
network services?
a. Kerberos
b. TACACS+
c. RADIUS
d. Multifactor authentication
e. Diameter
88. Suppose your Windows laptop’s wireless network adapter is configured to
use the 802.11n wireless networking standard. Also, suppose a café you visit
has a popular model of an 802.11ac access point. Assuming you have the
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correct SSID and logon credentials, what will most likely happen when you
attempt to associate with the café’s wireless network?
a. Your wireless networking client will be able to see the access point, but
will be unable to associate with it.
b. Your wireless networking client will not be able to see the access point.
c. Your wireless networking client will be able to see the access point and
attempt to associate with it, but the incompatible frequencies will prevent
successful association.
d. Your wireless networking client will be able to see the access point and
attempt to associate with it, but the incompatible security techniques will
prevent successful association.
e. Your wireless networking client will be able to see the access point and
successfully associate with it.
89. You have just rearranged the access points on your small office network.
Now a group of employees complains that they cannot reliably get their
workstations to connect with a new 802.11ac access point. You have
confirmed that the workstations are using the correct SSID, security type,
and passphrase. You have also confirmed that the access point is turned on
and functioning properly because when you stand in the computer room
where it’s located, you can connect to the access point from your
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smartphone. Which of the following is likely preventing the other users’
workstations from associating with the new access point?
a. The users are attempting to log on using incorrect user IDs.
b. The workstations are located beyond the access point’s range.
c. The workstations are set to use 802.11g.
d. The users have turned off their wireless antennas.
e. The workstations’ wired NICs are causing addressing conflicts with their
wireless NICs.
90. With which of these utilities can you require a Windows 10 Professional user
to create a password of at least 8 characters?
a. Cmd
b. Devmgmt.msc
c. Virtmgmt.msc
d. Gpedit.msc
e. Netplwiz
91. Which WAN technology uses a fixed message size but does not rely on a
specific timing scheme?
a. Ethernet
b. ATM
c. Frame relay
d. SONET
e. MPLS
92. Which of the following is a likely reason for using subnetting?
a. To facilitate easier migration from IPv4 to IPv6 addressing
b. To enable DHCP on a network
c. To limit broadcast domains
d. To reduce the likelihood for user error when modifying TCP/IP properties
e. To reduce the number of routing table entries
93. Which of the following wireless security techniques uses both RADIUS and
AES?
a. WPA2-Enterprise
b. WPA
c. WEP
d. WPA-Enterprise
e. WPA2
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94. Your company is experiencing a growth spurt and is ready to invest in a
more sophisticated disaster recovery plan. Currently the backup plan
consists of a few spare computers in a storage closet, and data on the servers
is duplicated weekly to an off-site backup service. The company owners have
committed to acquiring additional servers to duplicate critical servers in
their current network, and they want the servers to be configured identically
to the servers now in use. The new servers will be stored at an off-site data
center, and updated every time the on-site servers are updated. What type of
disaster recovery site is your company creating?
a. Hot site
b. Ambient site
c. Site survey
d. Warm site
e. Differential site
95. A virtual switch includes several virtual ports, each of which can be
considered a:
a. Virtual bridge
b. Virtual router
c. Virtual gateway
d. Virtual hub
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e. Virtual repeater
96. Which OSI layer(s) operate differently in wired versus wireless network
connections?
a. Layers 5, 6, and 7
b. Layers 1, 2, and 3
c. Layer 1
d. Layer 2
e. Layers 1 and 2
97. As a networking professional, you might use a multimeter to do which of the
following? Choose all that apply.
a. Determine where the patch cable for a specific server terminates on the
patch panel
b. Verify that the amount of resistance presented by terminators on coaxial
cable networks is appropriate
c. Check for the presence of noise on a wire (by detecting extraneous
voltage)
d. Confirm that a fiber-optic cable can transmit signals from one node to
another
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e. Validate the processing capabilities of a new router
Answer:
98. You’re setting up a wireless network for a coffee shop and want to provide
some liability protection for the shop owners when customers use their Wi-Fi
Internet access. Which of the following tools will provide this protection
while still allowing customers convenient access to the Internet?
a. ACL
b. WPA2
c. MAC filter
d. EAPoL
e. Captive portal
99. What type of device does this icon represent on a network diagram?
[[Insert Figure D-Q99 here]]
a. Router
b. Multilayer switch
c. VoIP gateway
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d. vSwitch
e. IDS/IPS
100. While configuring your new SOHO router, you’re given several security
options. Which one would provide the most secure encryption of your
transmissions?
a. PSK
b. AES
c. WEP
d. TKIP
e. RC4