ExamAdept

What is the address range of a Class B network address in binary?

A:

01xxxxxx

B:

0xxxxxxx

C:

10xxxxxx

D:

110xxxxx

Answer: C

The range of a Class B network address is 128-191. This makes our binary range 10xxxxxx.

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Which of the following protocols uses both TCP and UDP?

A:

FTP

B:

SMTP

C:

Telnet

D:

DNS

Answer: D

DNS uses TCP for zone exchanges between servers and UDP when a client is trying to resolve a hostname to an IP address.

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What protocol is used to find the hardware address of a local device?

A:

RARP

B:

ARP

C:

IP

D:

ICMP

Answer: B

Address Resolution Protocol (ARP) is used to find the hardware address from a known IP address.

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Which of the following are TCP/IP protocols used at the Application layer of the OSI model?

IP
TCP
Telnet
FTP
TFTP

A:

1 and 3

B:

1, 3 and 5

C:

3, 4 and 5

D:

All of the above

Answer: C

Telnet, File Transfer Protocol (FTP), and Trivial FTP (TFTP) are all Application layer protocols. IP is a Network layer protocol. Transmission Control Protocol (TCP) is a Transport layer protocol.

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Which statements are true regarding ICMP packets?

ICMP guarantees datagram delivery.
ICMP can provide hosts with information about network problems.
ICMP is encapsulated within IP datagrams.
ICMP is encapsulated within UDP datagrams.

A:

1 only

B:

2 and 3

C:

1 and 4

D:

All of the above

Answer: B

ICMP is used for diagnostics and destination unreachable messages. ICMP is encapsulated within IP datagrams, and because it is used for diagnostics, it will provide hosts with information about network problems.

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Questions for: Tcp Ip