Chapter 9 review questions Flashcards
A node on a network has an IP address of 140.133.28.72 and its subnet mask is 255.248.0.0. What type of subnetting has been used on this network?
A. Classless
B. Supernetting
C. Classful
D. No subnetting has been used
A. Classless
- What is the default subnet mask for a Class C network?
a. 0.0.0.0
b. 255.255.255.0
c. 255.255.0.0
d. 255.0.0.0
b. 255.255.255.0
Convert the following subnet mask into its dotted decimal equivalent: 11111111
11111111 11111000 00000000.
a. 1.1.224.0
b. 224.224.128.0
c. 255.255.255.0
d. 255.255.248.0
d. 255.255.248.0
On a network with an IP address of 140.133.28.72 (or 11111111 11111000 00011100 01001000) and a subnet mask of 255.248.0.0 (or 11111111 11111000 00000000 0000000), what is the network ID?
A. 140.128.0.0 (or 10001100 10000000 00000000 00000000)
B. 140.248.0.0 (or 10001100 11111000 00000000 00000000)
C. 140.133.20.0 (or 10001100 10000101 00010100 00000000)
D. 255.248.0.1 (or 11111111 11111000 00000000 00000001)
A. 140.128.0.0 (or 10001100 10000000 00000000 00000000)
As a networking consultant, you’ve been asked to help expand a client’s TCP/IP
network. The network administrator tells you that the network ID is subnetted
as 185.27.54.0/26. On this network, how many bits of each IP address are devoted to
host information?
a. 4
b. 6
c. 14
d. 26
b. 6
You have decided to create 254 subnets on your Class B network. What subnet mask
will you use to accomplish this?
a. 255.255.0.0
b. 255.254.0.0
c. 255.255.254.0
d. 255.255.255.0
d. 255.255.255.0
If you subdivide your Class B network into 254 subnets, what is the maximum number of hosts you can assign to any single subnet?
A. 255
B. 212
C. 254
D. 225
C. 254
If you worked on a network that could not interpret classless addressing, and your
network ID was 145.27.0.0, what is the theoretical maximum number of different
subnets you could create on this network?
a. 16
b. 64
c. 128
d. 254
d. 254
Your company has leased a Class C network whose network ID is 205.61.128.0.
You want to create 16 subnets within this network. One of the subnets will have an extended
network prefix of 205.61.128.64. What will be the broadcast address for this subnet?
(Hint: If you know the number of hosts per subnet, you can easily determine the
broadcast address.)
a. 205.61.128.79
b. 205.61.128.143
c. 205.61.128.31
d. 205.61.128.95
a. 205.61.128.79
Your workstation’s IP address is 10.35.88.12, and your supervisor’s workstation’s
IP address is 10.35.91.4. When you send data from your workstation to your
supervisor’s workstation, what is the most likely IP address of the first default
gateway that will accept and interpret your transmission?
a. 10.35.88.12
b. 10.35.1.1
c. 10.35.88.1
d. 10.35.91.1
c. 10.35.88.1
You have enabled NAT on your small office’s router. The router’s private network
IP address is 192.168.6.1. Which of the following IP addresses is the most likely to be
automatically assigned to one of the workstations that uses this router as its default
gateway?
a. 192.168.6.1
b. 192.168.6.6
c. 192.168.255.0
d. 192.168.255.255
b. 192.168.6.6
Which two of the following are benefits of using IMAP4 relative to POP3?
a. It allows users to review and delete mail without downloading it from the mail server.
b. It provides mail delivery guarantees.
c. It allows users to modify mail server settings.
d. It provides better encryption for message attachments.
e. It enables multiple users to easily share a central mailbox
a. It allows users to review and delete mail without downloading it from the mail server.
e. It enables multiple users to easily share a central mailbox
You have decided to use PAT on your small office network. At minimum, how many
IP addresses must you obtain from your ISP in order for all five clients in your office to
be able to access servers on the Internet?
a. 1
b. 4
c. 5
d. None, the private IP addresses will work.
a. 1
What Network layer protocol does the traceroute utility use to obtain its information
about paths between a source and destination?
a. UDP
b. ARP
c. NTP
d. ICMP
d. ICMP
Suppose your office’s only DNS server was down, and you wanted to view the DNS
address record for your company’s domain. Which of the following TCP/IP utilities
would allow you to do this?
a. nbtstat
b. netstat
c. traceroute
d. dig
d. dig
