CO1507 week 6 quiz

Broadcasts do not pass beyond a ..

• Switch

• Router

• Host

• Server

How many layers are there in the OSI model?

• 5

• 7

• 6

• 8

At what layer of the OSI model does a router operate

• Network

• Data-Link

• Physical

• Transport

What is the broadcast address for the following network? : 172.16.100.32 255.255.0.0

• 172.16.0.0

• 172.16.100.255

• 172.16.100.0

• 172.16.255.255

What is the network address of the following IP : 192.168.100.77 255.255.255.0

• 192.168.100.255

• 192.168.100.1

• 192.168.100.0

• 192.168.0.0

Which protocol is used to discover a network hosts MAC address for a given IP address

• DNS

• ICMP

• TCP

• ARP

What service provides dynamic allocation of IP addresses to hosts on a network

• DNS

• DHCP

• ARP

• TCP

How long is a MAC address?

• 32 bits

• 64 bits

• 48 bits

• 24 bits

What is the destination MAC address in an ARP request ..

• Broadcast MAC address

• Left blank

• The hosts own MAC address

• Broadcast network address

Why are ARP entries cleared from tables after time has elapsed

• To save cache memory

• To prevent entries from becoming outdated

• To reduce the number of broadcasts on the network

• Make it easier for a network engineer to manage