51. Which two of the following protocols
are used at the Transport layer?
a.
ARP
b.
UDP
c.
ICMP
d.
RARP
e.
TCP
f.
BOOTP
Ans:
B and E
52. UDP provides connectionless datagram
service.
a.
True
b.
False
Ans: True
53. Transmission Control Protocol
provides Flow Control and Error Checking at transport Layer
A.
True
B.
False
Ans:
A
54. What are the two functions of Data Link
Layer. (multiple choice question)
a.
Handles access to shared media
b.
Manages protocol access to the
physical network medium
c.
Provides SAPs for higher level
protocols
d.
Allows multiple devices to
uniquely identify one another on the data link layer
Ans:
B and D
55. What is required to support
full-duplex Ethernet?(multiple choice question)
a.
Multiple paths between multiple
stations on a link
b.
Automatic sensing operation by
all connected stations
c.
Loopback and collision
detection disabled
d.
Full-duplex NIC cards
Ans:
D
56. ARP stands for:
a.
Address Resolution Phase
b.
Address Resolution Protocol
c.
Address Recall Protocol
d.
ARP Resolution Protocol
Ans: B
57. What is the difference between TCP
and UDP?
a.
TCP is connection-oriented; UDP
uses acknowledgements only
b.
TCP is connection-oriented; UDP
is connectionless
c.
Both TCP and UDP are
connection-oriented, but only TCP uses windowing
d.
TCP and UDP both have
sequencing, but UDP is connectionless
Ans: B
58. Which three of the following are
true statements about connection-oriented sessions?
a.
The segments delivered are
acknowledged back to the sender upon their reception
b.
Any segments not acknowledged
the are retransmitted by the receiver
c.
A manageable data flow is
maintained in order to avoid congestion, overloading and loss of any data
d.
Segments are sequenced back
into their proper order upon arrival at their destination
Ans:
A, C, and D
59. Which of the following is a
characteristic of a switch?
a.
Switches forward packets based
on the IPX or IP address in the frame
b.
Switches forward packets based
on the IP address in the frame
c.
Switches forward packets based
on the MAC address in the frame
d.
Switches forward packets based
only on the IP address in the packet
Ans: C
60. Identify 3 characteristics of a
connection-oriented protocol?(multiple choice)
a.
Path determination
b.
Flow control
c.
Acknowledgements
d.
Uses hop count as metric
e.
3 step handshake
Ans\:B, C and E
61. Identify the 3 Network layer protocols?
a.
NetBios
b.
SAP
c.
ARP
d.
IP
e.
RARP
Ans:
C, D and E
62. What is the function of the
Transport layer and which protocols reside there?
a.
MAC addressing – IP
b.
Interhost communication - SQL,
NFS
c.
Best effort Packet delivery -
TCP, UDP
d.
End-to-end connections - TCP,
UDP
Ans: D
63. Identify 3 characteristics of an IP
address?(multiple choice question)
a.
Contains a network address and
a host address
b.
32 bits long
c.
Unique to each network
d.
Part of the default Cisco
configuration
e.
Referred to as the hardware
address
Ans:
A, B and C
64. Which statement is true regarding
half duplex?
a.
Only works in a point-to-point
configuration
b.
Allows for transmitting and
receiving but not a the same time
c.
Allow for transmitting and
receiving of data simultaneously
d.
Doubles the bandwidth
Ans:
B
65. Following are the transport layer
protocols____(multiple choice )
a.
IP
b.
TCP
c.
CDP
d.
ARP
e.
UDP
Ans: B and E
66. The network device required to
connect a Token ring network to an Ethernet network?
a.
Repeater
b.
NIC
c.
Router
d.
Token Ring to Ethernet
translation hub
Ans: C
67. Follwing are true for a MAC address:
a.
Burned into the NIC
b.
48 bits long
c.
Length is 32 bits
d.
Used to deliver the frame to
the end device
e.
Contains a network portion and
a host portion
Ans: A, B,D
68. Ping
command is used to:
a.
Share routing information with
a neighbor router
b.
Transmit user data when buffers
are full
c.
Test connectivity at layer 3
d.
Test entire protocol stack
Ans: C
69. Following statements are true for
MAC address: (multiple choice question)
a.
Contains a network portion and
host portion
b.
Always assigned by System
Administrator
c.
48 bits long
d.
Contains a vendor code and
serial number
Ans: C and D
70. OSI layer which is responsible for
end-to-end connections is:
a.
Network
b.
Transport
c.
Session
d.
Data Link
e.
TCP
Ans: B
71. Which addresses are INCORRECTLY
paired with their class?(multiple choice)
a.
128 to 191, Class B
b.
192 to 223 Class B
c.
128 to 191, Class C
d.
192 to 223, Class C
Ans: B and C
73. Which addresses are INCORRECTLY
paired with their class?(multiple choice)
a.
240 - 255, Class D
b.
240 - 255, Class E
c.
224 - 239, Class D
d.
224 - 239, Class E
Ans: A and D
74. Which IP Address Class can have 16
million subnets but support 254 hosts?
a.
Class C
b.
Class B
c.
Class A
d.
Class D
Ans: A