Network+ Guide to Networks - Sixth Edition - Chapter 4 Review

Suppose your computer's IP address is 155.61.9.188, and your network administrator has not subnetted the network to which you're connected. What is your computer's subnet mask? a. 255.0.0.0 b. 255.255.0.0 c. 255.255.255.0 d. 255.255.255.255

B. 255.255.0.0

Which of the following IP addresses might have been assigned by APIPA? a. 169.180.23.5 b. 255.254.254.0 c. 192.285.128.3 d. 255.127.0.0

A. 169.180.23.5

How many bytes are used for an IPv4 address? a. 4 b. 16 c. 31 d. 64

A. 4

Before you connect to your office network, you want to verify that your workstation's TCP/IPv6 protocols are functioning. Which of the following addresses do you ping? a. ::1 b. FE08::0 c. 0::0 d. 1::1

A. ::1

What devices are the highest authorities in the domain name system hierarchy? a. Root servers b. Top-level domain routers c. IANA-operated gateways d. Authoritative hosts

A. Root servers

Which of the following occurs at the Network Interface layer of the TCP/IP model? a. Routing b. Address translation c. Password authentication d. Signaling

A. Routing

Suppose you send data to an address that begins with the Format Prefix FF0E on a network running IPv6. To what device(s) are you transmitting? a. All devices on your network segment b. All devices that are reachable c. Your own device d. Your domain name server

B. All devices that are reachable

At a minimum, what fields would you find in a hosts file? a. IP address and MAC address b. IP address and host name c. IP address and subnet mask d. Host name and MAC address

B. IP address and host name

You issue a transmission from your workstation to the following socket address on your LAN: 10.1.1.145:110. Assuming your network uses standard port designations, what Application layer protocol are you using? a. FTP b. POP c. Telnet d. HTTP

B. POP

Which of the following applications would be best suited to multicasting? a. Sending e-mail to your coworker b. Participating in a company-wide video conference via the Internet c. Updating an inventory database d. Logging on to a host over the Internet

B. Participating in a company-wide videoconference via the Internet

You have just set up a new wireless network in your house, and you want to determine whether your Linux laptop has connected to it and obtained a valid IP address. Which of the following commands will allow you to find the information you need? a. ifconfig /all b. ifconfig -a c. ifconfig -n d. ifconfig /net

B. ifconfig -a

Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To what device(s) are you transmitting? a. Your own device b. All devices that are reachable c. All devices on your network segment d. Your domain name server

C. All devices on your network segment

Suppose you have a workstation that uses the IP address 203.12.176.55 on a traditional IPv4 network. To what network class does the workstation belong? a. A b. B c. C d. D

C. C

What field in an IPv4 packet can be used to indicate that a packet should be routed before any other packets? a. Flags field b. Identification field c. Differentiated Services field d. Fragment offset field

C. Differentiated Services field

What happens to an IPv6 packet when its hop limit reaches 0? a. It is retransmitted by the connectivity device that last received it. b. It is bounced back to its source node. c. It is discarded. d. It is assigned a new hop limit.

C. It is discarded.

If you are connected to a network that uses DHCP, and you need to terminate your Windows workstation's DHCP lease, which of the following commands would you use? a. ipconfig /term b. ipconfig /exit c. ipconfig /release d. ipconfig /stop

C. ipconfig /release

Which of the following DNS records identifies a mail server? a. mail1 IN A 178.99.201.12 b. mailserver IN AAAA 178.99.201.12 c. mail1 IN MX 178.99.201.12 d. mailserver IN PTR 178.99.201.12

C. mail1 IN MX 178.99.201.12

On a client/server network running TCP/IPv4, what computer initiates the process of assigning an IP address through DHCP? a. The DHCP server b. The gateway c. The client's primary authentication server d. The client

D. The client

You are the network manager for a computer training center that allows clients to bring their own laptops to class for learning and taking notes. Clients need access to the Internet, so you have configured your network's DHCP server to issue them IP addresses automatically. What DHCP option should you modify to make sure you are not wasting addresses that were used by clients who have completed a class and no longer need them? a. The number of available addresses in the DHCP pool b. The subnet mask for client computers, to isolate their group of IP addresses c. The priority with which DHCP address requests are handled by the server d. The lease duration for client computers

D. The lease duration for client computers

What is the function of ARP? a. To acknowledge that a data frame was received b. To obtain the IP address of a host, then map that IP address to a registered domain name c. To measure the number of dropped packets in a single transmission d. To obtain the MAC address of a host, and then map that MAC address to the host's IP address

D. To obtain the MAC address of a host, and then map that MAC address to the host's IP address