Chap 7 Network+

6. Which of the following are valid subnet masks? (Select two.) A. 11111111.11111111.11100000.00000000 B. 11111111.11111111.11111111.00000000 C. 11111111.00000000.11111111.00000000 D. 00000000.00000000.11111111.11111111

A and B. Subnet masks, when written in binary, consist of a string of ones followed by a string of zeroes.

8. What is the number 138 in binary? A. 10001010 B. 10101010 C. 10000111 D. 11001010

A. 10001010.

Which of the following is a proper subnet mask? A. 11111111111111111111111100000000 B. 00000000000000000000000011111111 C. 10101010101010101010101011111111 D. 01010101010101010101010100000000

A. A subnet is all ones followed by zeroes.

9. When DHCP Discover fails, what process will the client use to generate an address for itself? A. ATAPI (Automatic Temporary Address Program Initiator) B. APIPA (Automatic Private IP Addressing) C. ATIPA (Automatic Temporary IP Address) D. APFBA (Automatic Programmable Fall Back Address)

B. APIPA (Automatic Private IP Addressing).

1. How many bits does an IPv4 address consist of? A. 16 B. 32 C. 64 D. 128

B. An IPv4 address consists of 32 bits.

5. Identify the class of the following IP address: 146.203.143.101. A. Class A B. Class B C. Class C D. Class D

B. The address is Class B.

What does ARP stand for? A. Address Reconciliation Process B. Automated Ranking Protocol C. Address Resolution Protocol D. Advanced Resolution Protocol

C. Address Resolution Protocol.

2. Identify the network ID section of the following IP address and subnet mask: 1 0. l 4.12.43-255.255.255.0. A. 10.14 B. 43 C. 10.14.12 D. 14.12.43

C. The network ID is the first three octets when using the specified subnet.

10. Which of the following is a valid loopback address? A. 128.0.0.1 B. 127.0.0.0 C. 128.0.0.255 D. 127.24.0.1

D. 127.24.0.1. Any address in the 127.0.0.0/8 subnet will work as a loopback.

7. What is the maximum number of hosts in a /19 subnet? A. 254 B. 8,192 C. 16,382 D. 8,190

D. The total number of hosts is 8,190 (213 - 2).