Download Mention typical hardware components in a computer system (at least

CS447 - Networks and Data Communications
Possible Quiz Questions (Quiz #7)
For October 18th, 2016
The following is a list of possible questions for our quiz on October 18th. Some of the questions
will not be asked in the quiz. All the questions that will appear in the quiz will appear exactly as
shown below (however, numeric parameters may be changed). The quiz is closed textbook,
closed notes and closed neighbors. Note that the questions, which did not appear in this quiz, still
may appear in the exams. You will find a solution for these questions during lectures.
#1:
What is “MAC” address?
#2:
What is “physical address”?
#3:
What is “logical address”?
#4:
Describe the relation between MAC address, IP address and host name.
#5:
Why are three different addresses (“MAC address”, “IP address”, and “host name”)
assigned to a host computer (to be exact, “to each NIC”) in the Internet?
#6:
What does “ARP” stand for? What is it for?
#7:
How can a transmitting host computer know the MAC address of the destination host
computers? Explain how, for the following two different cases: (a) if the destination is in
the same network domain and (b) if the destination is not in the same network domain (i.e.,
in another remote domain).
#8:
What is the mechanism to reduce the number of “ARP broadcasts”?
#9:
What are “repeaters”?
#10: What are “multi-port repeaters”?
#11: How are “switches” different from “repeaters”?
#12: What are “multi-port bridges (switching hubs)”?
#13: What is the primary advantage of “switch” (compared to “repeaters”)?
#14: How are “routers” different from “switches” (mention two major differences)?
#15: Sketch the internal structure of typical switches.
#16: What type of network address do switches use for forwarding packets?
#17: What type of network address do routers use for forwarding packets?
#18: What is “cut-through forwarding”?
#19: What is “store-and-forward forwarding”?
#20: Let us assume that the two LAN segments are connected by a switch (as shown by a figure
below). What are the two activities the switch will perform when the switch receives a
packet from A (that is destined to B) while the switch’s table is empty?
Bridge
1
LAN 1
A
B
2
X
C
A sent a packet to B
LAN 2
HOST
Y
Z
PORT
A
B
C
X
Y
Z
#21: Sketch the internal structure of typical routers.
#22: What is the primary advantage of “routers” (compared to “switches”)?
#23: What is the primary disadvantage of “routers” (compared to “switches”)?
#24: What is “routing algorithm”?
#25: Mention two examples for “routing algorithm”.
#26: What is “routing table”? Mention one example for “routing table”.
#27: What is “routing protocol”?
#28: (Homework Research) Mention two interior routing protocols and one exterior routing
protocol.
#29: Sketch “cross-bar switch” and “bus switch”.
#30: Provide a sketch of “switching table”.
#31: What are “layer-3 switches”?
#32: Why are “layer-3 switches introduced?
#33: Sketch the internal structure of “switching routers”.
#34: What is the advantage of switching routers?
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CS 447-001 – Networks and Data Communications, Quiz #7 Question List