Net+4.1 OB Questions

What is the primary function of the Internet Protocol (IP) header in IPv4?

• To manage logical addressing and forwarding

• To encrypt data

• To compress data

• To provide error correction.

The Version field is ____ bytes long.

• 0 to 4

• 4 to 8

• 8 to 16

• 16 to 31

Which protocol is used for status messaging and connectivity testing?

• ICMP

• IGMP

• GRE

• ESP

The IP protocol type value for TCP is 6. What is the IP protocol type value for UDP?

• 17

• 6

• 47

• 50

Fill in the blank: The Internet Group Messaging Protocol (IGMP) is used with _________.

• status messaging

• multicasting

• tunneling

• encryption

What is the main difference between Layer 2 and Layer 3 forwarding?

• Layer 2 is switching, Layer 3 is routing

• Layer 2 is routing, Layer 3 is switching

• Both are switching

• Both are routing

In the network diagram, which port of the router is connected to the ISP?

• .30

• .46

• .254

• .62

What is used within each subnet to forward frames between nodes?

• IP addresses

• MAC addresses

• DNS addresses

• Gateway addresses

Nodes within each subnet can address one another directly because they are in the same ________ domain.

• network

• broadcast

• collision

• routing

What is the primary purpose of the Address Resolution Protocol (ARP)?

• To resolve domain names to IP addresses

• To resolve IPv4 addresses to hardware MAC addresses

• To encrypt data packets

• To establish a secure connection