2016/11 New CCNA Data Center 640-911 DCICN: Introducing Cisco Data Center Networking Exam Questions Updated Today!
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QUESTION 54
Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI model? (Choose three.)

A.    PDUs
B.    bits
C.    sequences
D.    segments
E.    packets
F.    frames

Answer: BDF
Explanation:
Bits -1 layer
Frames – 2 layer
Segments – 4 layer
http://en.wikipedia.org/wiki/OSI_model

QUESTION 55
Which two layers of the OSI model are combined in the Internet protocol suite application layer? (Choose two.)

A.    2
B.    3
C.    4
D.    5
E.    6
F.    7

Answer: DE
Explanation:
http://en.wikipedia.org/wiki/Internet_protocol_suite

QUESTION 56
Which two layers of the OSI model are combined in the Internet protocol suite network access layer? (Choose two.)

A.    1
B.    2
C.    3
D.    4
E.    5
F.    6
G.    7

Answer: AB
Explanation:
http://en.wikipedia.org/wiki/Internet_protocol_suite

QUESTION 57
In an IEEE 802.3 Ethernet frame, what is the significance of the DSAP field?

A.    The DSAP field specifies the TCP or UDP port that is associated with the transport protocol.
B.    The DSAP field is only used on United States Department of Defense networks to indicate the
information classification level.
C.    The DSAP field is only used in Ethernet II frames.
D.    The DSAP field indicates the network layer protocol.

Answer: D

QUESTION 58
Which field in an Ethernet II frame performs the same function as the DSAP field in an 802.3 Ethernet frame?

A.    start of frame
B.    EtherType
C.    frame check sequence
D.    Subnetwork Access Protocol
E.    Logical Link Control

Answer: B

QUESTION 59
Which option is an example of a distance vector routing protocol?

A.    RIP
B.    OSPF
C.    ARP
D.    IS-IS

Answer: A
Explanation:
http://en.wikipedia.org/wiki/Distance-vector_routing_protocol
“Examples of distance-vector routing protocols include RIPv1 and RIPv2 and IGRP.” OSPF, IS-IS
– link-state routing protocols. ARP – address resolution protocol.

QUESTION 60
Which option is an example of an advanced distance vector routing protocol?

A.    EIGRP
B.    RIP
C.    OSPF
D.    ARP

Answer: A
Explanation:
http://en.wikipedia.org/wiki/Enhanced_Interior_Gateway_Routing_Protocol
“The Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced communications protocol that helps automate routing decisions on a computer network.”

QUESTION 61
Which option is an example of a link-state routing protocol?

A.    EIGRP
B.    RIP
C.    OSPF
D.    ARP

Answer: C
Explanation:
http://en.wikipedia.org/wiki/Link-state_routing_protocol
“A link-state routing protocol is one of the two main classes of routing protocols used in packet switching networks for computer communications (the other is the distance-vector routing protocol). Examples of link state routing protocols include open shortest path first (OSPF) and intermediate system to intermediate system (IS-IS).”

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