Cisco Network Academy Chapter 3

Cisco Network Academy Chapter 3

Question 1:
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 2:
What is a type of logical topology?
A. star
B. hierarchical
C. mesh
D. token passing

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

Question 5:
Which is considered a layer 2 device?
A. hub
B. repeater
C. switch
D. transceiver

Question 6:
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 7:
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 8:
What data units are associated with OSI Layer 1?
A. bits
B. frames
C. packets
D. segments

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

Question 10:
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 11:
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 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:
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 14:
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 15:
At which OSI layer does a repeater function?
A. 1
B. 2
C. 3
D. 4


Question 16:
Which could be considered a layer 1-7 device?
A. router
B. hub
C. switch
D. computer

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

Question 19:
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 20:
What are the most important traffic-regulating devices on large networks?
A. hubs
B. servers
C. routers
D. bridges

Question 21:
A hub operates at which OSI layer?
A. 1
B. 2
C. 4
D. 6

Question 22:
What does a switch use to make data forwarding decisions?
A. IP address
B. MAC address
C. network address
D. subnetwork address.