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ECCouncil 312-38 Practice Test - Questions Answers, Page 23

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How many layers are present in the OSI layer model?

A.
5
A.
5
Answers
B.
4
B.
4
Answers
C.
7
C.
7
Answers
D.
9
D.
9
Answers
Suggested answer: C

Which of the following is an electronic device that helps in forwarding data packets along networks?

A.
Router
A.
Router
Answers
B.
Hub
B.
Hub
Answers
C.
Repeater
C.
Repeater
Answers
D.
Gateway
D.
Gateway
Answers
Suggested answer: A

Which of the following represents a network that connects two or more LANs in the same geographical area?

A.
PAN
A.
PAN
Answers
B.
WAN
B.
WAN
Answers
C.
MAN
C.
MAN
Answers
D.
SAN
D.
SAN
Answers
Suggested answer: C

The IP addresses reserved for experimental purposes belong to which of the following classes?

A.
Class E
A.
Class E
Answers
B.
Class C
B.
Class C
Answers
C.
Class A
C.
Class A
Answers
D.
Class D
D.
Class D
Answers
Suggested answer: A

Which of the following layers is closest to the end user?

A.
Application layer
A.
Application layer
Answers
B.
Physical layer
B.
Physical layer
Answers
C.
Session layer
C.
Session layer
Answers
D.
Presentation layer
D.
Presentation layer
Answers
Suggested answer: A

Which of the following IEEE standards defines the token passing ring topology?

A.
802.4
A.
802.4
Answers
B.
802.5
B.
802.5
Answers
C.
802.3
C.
802.3
Answers
D.
802.7
D.
802.7
Answers
Suggested answer: B

Which of the following layers of the OSI model provides physical addressing?

A.
Application layer
A.
Application layer
Answers
B.
Network layer
B.
Network layer
Answers
C.
Physical layer
C.
Physical layer
Answers
D.
Data link layer
D.
Data link layer
Answers
Suggested answer: D

Which of the following protocols sends a jam signal when a collision is detected?

A.
ALOHA
A.
ALOHA
Answers
B.
CSMA/CA
B.
CSMA/CA
Answers
C.
CSMA/CD
C.
CSMA/CD
Answers
D.
CSMA
D.
CSMA
Answers
Suggested answer: C

Which of the following key features limits the rate a sender transfers data to guarantee reliable delivery?

A.
Ordered data transfer
A.
Ordered data transfer
Answers
B.
Error-free data transfer
B.
Error-free data transfer
Answers
C.
Flow control
C.
Flow control
Answers
D.
Congestion control
D.
Congestion control
Answers
Suggested answer: C

Which of the following OSI layers is sometimes called the syntax layer?

A.
Presentation layer
A.
Presentation layer
Answers
B.
Application layer
B.
Application layer
Answers
C.
Physical layer
C.
Physical layer
Answers
D.
Data link layer
D.
Data link layer
Answers
Suggested answer: A
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