Semester 1 : Chapter 3

Question 1:
If 4 hosts are connected to a hub how many IP addresses are required for these 5 devices?

A.   one
B.   two
C.   four
D.   five

 Question 2:
What is the correct order of encapsulation?
A.   data, segment, packet, frame, bits
B.   data, frame, packet, segment, bits
C.   bits, data, packet, frame
D.   bits, frame, data, packet

 Question 3:
When creating a network from just two PCs, what kind of cable would be used to directly connect them?
A.   fiber optic cable
B.   standard UTP cable
C.   UTP rollover cable
D.   UTP crossover cable

 Question 4:
What does a switch use to make data forwarding decisions?
A.   IP address
B.   MAC address
C.   network address
D.   subnetwork address

 Question 5:
Which statement best describes bridges and the way they make forwarding decisions?
A.   they operate at OSI Layer 2 and use IP addresses to make decisions
B.   they operate at OSI Layer 3 and use IP addresses to make decisions
C.   they operate at OSI Layer 2 and use MAC addresses to make decisions
D.   they operate at OSI Layer 3 and use MAC addresses to make decisions

 Question 6:
Which could be considered a layer 1-7 device?
A.   router
B.   hub
C.   switch
D.   computer

 Question 7:
Which is considered a layer 2 device?
A.   hub
B.   repeater
C.   switch
D.   transceiver

 Question 8:
What is the function of a transceiver?
A.   extends the length of network segment
B.   converts one media type to another
C.   segments two LANS
D.   increases the number of devices on a segment

 Question 9:
What is another name for a multi-port repeater?
A.   bridge
B.   host
C.   hub
D.   sequencer

 Question 10:
What is a type of logical topology?
A.   star
B.   hierarchical
C.   mesh
D.   token passing

 Question 11:
Which material is used for network media?
A.   switch
B.   hub
C.   router
D.   fiber

 Question 12:
Routers operate primarily at what layer of the OSI model?
A.   Layer 1
B.   Layer 2
C.   Layer 3
D.   Layer 4

 Question 13:
Because a cloud is not really a device, but a collection of assumed capabilities, which OSI layers are represented in a cloud?
A.   Layers 1-3
B.   Layers 1-4
C.   Layers 4-7
D.   Layers 1-7

 Question 14:
A hub operates at which OSI layer?
A.   1
B.   2
C.   4
D.   6

 Question 15:
What is the purpose of a NIC?
A.   establishes, manages, and terminates sessions between applications and manages data exchange between presentation layer entities
B.   provides the host's access to the medium
C.   provides services to application processes
D.   provides mechanisms for the establishment, maintenance, and termination of virtual circuits, recovery, and information flow control

 Question 16:
What are the most important traffic-regulating devices on large networks?
A.   hubs
B.   servers
C.   routers
D.   bridges

 Question 17:
At which layer of the OSI model is the NIC located?
A.   Layer 2
B.   Layer 3
C.   Layer 4
D.   Layer 5

 Question 18:
What data units are associated with OSI Layer 1?
A.   bits
B.   frames
C.   packets
D.   segments

 Question 19:
What is the primary purpose of a router?
A.   to make packet forwarding decisions based on physical addresses
B.   to make packet forwarding decisions based on logical addresses
C.   to make frame forwarding decisions based on physical addresses
D.   to make frame forwarding decisions based on port addresses

 Question 20:
Which layer of the OSI model describes networking media?
A.   network layer
B.   data link layer
C.   physical layer
D.   transport layer

 Question 21:
What is the purpose of a repeater?
A.   connects a LAN to a WAN
B.   amplifies and retimes network signals
C.   records web pages and repeats them for other users
D.   relays time signals between network devices

 Question 22:
At which OSI layer does a repeater function?
A.   1
B.   2
C.   3
D.   4