Review Questions
The answers to these review questions appear in Appendix A, “Answers to Review Questions.”
If a PC on an Ethernet network attempts to communicate with a host on a different subnet, what destination IP address and destination MAC address will be placed in the packet/frame header sent by the PC?
Destination IP: IP address of the default gateway. Destination MAC: MAC address of the default gateway.
Destination IP: IP address of the remote host. Destination MAC: MAC address of the default gateway.
Destination IP: IP address of the remote host. Destination MAC: MAC address of the remote host.
Destination IP: IP address of the remote host. Destination MAC: MAC address of the local PC.
What protocol is used to request a MAC address that corresponds to a known IPv4 address on the local network?
IGMP
TTL
ICMP
ARP
What is the network address and subnet mask of a default route?
255.255.255.255/32
0.0.0.0/32
255.255.255.255/0
0.0.0.0/0
What routing protocol characteristic indicates the believability of the routing protocol (compared to other routing protocols)?
Weight
Metric
Administrative distance
SPF algorithm
Which of the following are distance-vector routing protocol features that can prevent routing loops? (Choose two.)
Reverse path forwarding (RPF) check
Split horizon
Poison reverse
Rendezvous point
Which of the following is a distance-vector routing protocol with a maximum usable hop count of 15?
BGP
EIGRP
RIP
OSPF
Which of the following routing protocols is an EGP?
BGP
EIGRP
RIP
OSPF
What is the term for unpredictable variation in delay in a modern network?
Congestion
Contention
Jitter
Serialization delay
The RSVP protocol is associated with which overall approach to QoS in a modern network?
DiffServ
IntServ
FIFO
Best effort
What QoS tool seeks to smooth out bandwidth utilization by buffering excess packets?
Traffic policing
Traffic shaping
Weighted Random Early Detection (WRED)
Integrated Services (IntServ)