Chapter 8 ■ Installing Wireless and SOHO Networks

Question 1

1. Which of the following wireless IEEE standards operate on the 2.4 GHz radio frequency
   and are directly compatible with each other? (Choose two.)
   A. 802.11a
   B. 802.11b
   C. 802.11ac
   D. 802.11g

Answer 1

B. 802.11b
D. 802.11g

Question 2

2. What is the primary function of the SSID?
   A. To secure communication between a web server and a browser
   B. To secure communication between a server and a remote host
   C. To serve as a parameter used to identify a network and configure a wireless connection
   D. To serve as a type of password used to secure a wireless connection

Answer 2

C. To serve as a parameter used to identify a network and configure a wireless connection

Question 3

3. Which of the following are features that allow 802.11ac to achieve higher data throughput?
   (Choose two.)
   A. MIMO
   B. Beamforming
   C. Channel bonding
   D. Code division multiplexing

Answer 3

A. MIMO
C. Channel bonding

Question 4

4. What is the most secure wireless encryption standard for 802.11 networks?
   A. WEP
   B. WPA
   C. WPA2
   D. SAFER+

Answer 4

C. WPA2

Question 5

5. What level of QoS is designated for interactive voice and video?
   A. 1
   B. 4
   C. 5
   D. 6

Answer 5

C. 5

Question 6

6. You have just installed a wireless router on your home network. Which of the following
   should you do to make it highly secure? (Choose all that apply.)
   A. Change the default administrator name and password.
   B. Change the SSID.
   C. Enable WEP.
   D. Configure it to channel 11.

Answer 6

A. Change the default administrator name and password.
B. Change the SSID.

Question 7

7. You are setting up a small office network for a client. Which Internet service would you
   recommend to provide the best speed?
   A. DSL
   B. Dial-up
   C. Satellite
   D. BRI ISDN
   E. PRI ISDN

Answer 7

A. DSL

Question 8

8. Which service allows users with private IP addresses to access the Internet using a public IP
   address?
   A. DHCP
   B. DNS
   C. DMZ
   D. NAT

Answer 8

D. NAT

Question 9

9. You are installing a single 802.11g wireless network. The office space is large enough that
   you need three WAPs. What channels should you configure the WAPs on to avoid communication
   issues?
   A. 2, 5, and 7
   B. 1, 8, and 14
   C. 1, 6, and 11
   D. 3, 6, and 9

Answer 9

C. 1, 6, and 11

Question 10

10. You are setting up a wireless network. Which wireless standards would give the users over
    40 Mbps throughput? (Choose all that apply.)
    A. 802.11ac
    B. 802.11b
    C. 802.11g
    D. 802.11n

Answer 10

A. 802.11ac
C. 802.11g
D. 802.11n

Question 11

11. You have been asked to configure a network for a small office. The wireless router is
    installed, and now you need to connect the client computers. What do you enter on the client
    computers to connect to the router?
    A. The administrator password
    B. The security passphrase
    C. The client’s MAC address
    D. The default router password

Answer 11

B. The security passphrase

Question 12

12. Which of the following technologies can operate in the 125 kHz to 134 kHz range?
    A. Bluetooth
    B. RFID
    C. NFC
    D. LTE

Answer 12

B. RFID

Question 13

13. Which of the following are advantages to using dial-up Internet service? (Choose two.)
    A. High speed
    B. Broad availability
    C. Low cost
    D. High security

Answer 13

B. Broad availability
C. Low cost

Question 14

14. Which of the following security standards was the first to introduce a dynamic 128-bit perpacket
    security key?
    A. WEP
    B. TKIP
    C. AES
    D. CCMP

Answer 14

B. TKIP

Question 15

15. You are running an 802.11g wireless router in mixed mode. You have three 802.11g wireless NICs using the router. A new user connects using an 802.11b wireless NIC. What will
    happen?
    A. The user with 802.11b will access the network at 11 Mbps, while the users with
    802.11g will access the network at 54 Mbps.
    B. The user with 802.11b will not be able to communicate on the network.
    C. The user with 802.11b will access the network at 11 Mbps. The users with 802.11g
    will access the network at 54 Mbps, unless they are communicating with the 802.11b
    device, which will be at 11 Mbps.
    D. All users will access the network at 11 Mbps.

Answer 15

D. All users will access the network at 11 Mbps.

Question 16

16. When enabled, which feature of a wireless router allows only specified computers to access
    the network?
    A. Port forwarding
    B. WPS
    C. SSID
    D. MAC filtering

Answer 16

D. MAC filtering

Question 17

17. A firewall operates by using a set of rules known as what?
    A. SLA
    B. ACL
    C. Whitelist
    D. DMZ

Answer 17

B. ACL

Question 18

18. You have set up a wireless router on your network and configured it to use AES. What configuration
    option do you need to choose on the client computers?
    A. WEP
    B. WPA
    C. WPA2
    D. TKIP

Answer 18

C. WPA2

Question 19

19. Besides 802.11 standards, which wireless communication methods work in the 2.4 GHz
    range? (Choose all that apply.)
    A. Bluetooth
    B. Z-Wave
    C. Satellite
    D. 5G mmWave
    E. Zigbee
    F. NFC

Answer 19

A. Bluetooth
E. Zigbee

Question 20

20. Which of the following broadband technologies provides two dedicated, digital data channels
    that can be combined for greater throughput?
    A. DSL
    B. Cable
    C. Satellite
    D. BRI ISDN
    E. PRI ISDN

Answer 20

D. BRI ISDN