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28 Οκτ 2013 (πριν από 3 χρόνια και 8 μήνες)

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School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
1




28/10/2013


For each question, mark the answer that you consider to be most appropriate by
marking a vertical line through the letter that corresponds with your chosen response.


A sample answer displays the method of entering

responses. The response '
b
' has been
chosen.


Question Number

Your Responses

For Marking only

Sample Answer

(a)


(c)

(d)


1

(a)

(b)

(c)

(d)


2

(a)

(b)

(c)

(d)


3

(a)

(b)

(c)

(d)


4

(a)

(b)

(c)

(d)


5

(a)

(b)

(c)

(d)


6

(a)

(b)

(c)

(d)


7

(a)

(b)

(c)

(d)


8

(a)

(b)

(c)

(d)


9

(a)

(b)

(c)

(d)


10

(a)

(b)

(c)

(d)


11

(a)

(b)

(c)

(d)


12

(a)

(b)

(c)

(d)


13

(a)

(b)

(c)

(d)


14

(a)

(b)

(c)

(d)


15

(a)

(b)

(c)

(d)


16

(a)

(b)

(c)

(d)


17

(a)

(b)

(c)

(d)


18

(a)

(b)

(c)

(d)


19

(a)

(b)

(c)

(d)


20

(a)

(b)

(c)

(d)


21

(a)

(b)

(c)

(d)


22

(a)

(b)

(c)

(d)


23

(a)

(b)

(c)

(d)


24

(a)

(b)

(c)

(d)


25

(a)

(b)

(c)

(d)


26

(a)

(b)

(c)

(d)


27

(a)

(b)

(c)

(d)


28

(a)

(b)

(c)

(d)


29

(a)

(b)

(c)

(d)


30

(a)

(b)

(c)

(d)


31

(a)

(b)

(c)

(d)


32

(a)

(b)

(c)

(d)


33

(a)

(b)

(c)

(d)


34

(a)

(b)

(c)

(d)


35

(a)

(b)

(c)

(d)


36

(a)

(b)

(c)

(d)


37

(a)

(b)

(c)

(d)


38

(a)

(b)

(c)

(d)


39

(a)

(b)

(c)

(d)


40

(a)

(b)

(c)

(d)


Total

Please leave this row blank



Student Name

Student ID

Score



/ 4
5

School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
2




28/10/2013




Introduction to Computer Networking







Final
Phase Test




4
th

May

20
10




Time allowed: 1 hour






Candidates should attempt ALL questions. Do not turn this page over until you
are instructed to do so. Mark your responses on the answer sheet pro
vided.








No reference material of any kind may be taken into the examination.



School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
3




28/10/2013


End of Term Assessment Test



Time allowed 1 Hour


Instructions


1.

Remove the answer sheet from the
front

of this booklet.


2

Write your name and
student ID number

in the box provided on the


answer sheet.


3

For each question, mark the answer that you consider to be most


appropriate by marking a vertical line
through the


letter
(s) that correspond

with your chosen response.
Note that some


questions may have more than one answer


4

A sample answer displays the method of entering responses. The


response '
b
' has been chosen.


5

Use a dark pen to mark your answers on the answer sheet.


6.

If you mark an ans
wer incorrectly, indicate the correct answer by


writing the corresponding letter(s) on the answer sheet.


7

You may use the qu
estion sheet for working out y
our

answers.

















Do not start until you are instructed to begin.

You may NOT TALK during this test.

School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
4




28/10/2013


1)

Which of the OSI model’s layers is associated with the following

statement?


Concerned with the representation of data i.e. the way that it is stored on the


particular computer. End users may

have different data representation


schemes; this layer converts both to a common language. Encryption and


compression

are carried out at this layer.


a)

Physical

b)

Data link

c)

Presentation

d)

Session


2

Which
two
of the OSI
model’s layers are concerned with

flow control?

a)

Transport Layer

b)

Datalink layer

c)

Session layer

d)

Physical layer


3

If the subnet mask for a class C IP address is 255.255.255.240, how many host


addresses will there be for each subnet?

a)

254

b)

32

c)

30

d)

14


4

What
does OSPF stand for
?

a)

Order Shortest Path First

b)

Open Shortest Path Finally

c)

Open Shortest Path First

d)

Order Shortest Path Finally


5

Express the binary number 100101011100
2

in hexadecimal.

a)

94D

b)

C9D

c)

95C

d)

96C


6

If 3.00 MB of data is transmitted across a channel having a bandwidth of


45.0 kbit/ second, ignoring transmission overheads, how long will the transfer


take?

a)

533 seconds

b)

559 seconds

c)

135.0 seconds

d)

15 seconds

School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
5




28/10/2013


7

What is the decimal value of binary 11010
2
?

a)

3

b)

14

c)

26

d)

52


8

How many bytes are there in a gigabyte?

a)

1 000 000 000

b)

8 000 000

c)

1 048 576

d)

1 073 741 824


9

Which of the following
is an advantage of dynamic routing
?

a)

Traffic follows a
predefined route to its destination

b)

Network topology information cannot be gained by eavesdropping

c)

Lower processor load

d)

Changes in the network are automatically communicated to other routers


10

Which OSI layer defines networking media, plug dimen
sions and voltage


levels?

a)

Layer 1

b)

Layer 2

c)

Network layer

d)

Layer 7


11

Which of the following statements
are

NOT true?

a)

RIP is an exterior gateway protocol

b)

ISIS is an exterior gateway protocol

c)

RIP is a distance vector routing

protocol


d)

OSPF is a link state rout
ed

protocol


12

Which of the following are link state routing protocols?


a)

EIGRP

b)

OSPF

c)

ISIS

d)

R
IP


13

Which of the following are distance vector routing protocols
?

a)

ISIS

b)

IGRP

c)

RIP

d)

EIGRP

School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
6




28/10/2013



14)

Which o
f the following responses is not a layer of the OSI model?

a)

Application

b)

Internet

c)

Session

d)

Data
-
Link


15

The most commonly
implement
ed
communications
protocol stack world
-
wide


is
:

a)

The ISO OSI model

b)

The TCP/ IP model

c)

Novell Netware

d)

Windows
XP sp3


16

Which of the following applications was NOT written to operate within the



TCP/ IP environment?

a)

Simple Mail Transfer Protocol, SMTP

b)

Telecommunications Network, TELNET

c)

File Transfer Protocol, FTP

d)

NetBios Enhanced User Interface, NETBEUI


17

Which of the following is NOT an official body responsible for setting and

issuing standards to the Internet community?

a)

ITU
-
T

b)

Microsoft ™

c)

IEEE

d)

ANSI


18

Which of the following is delivered using UDP at the Transpor
t layer?

a)

Isochronous data

b)

Email (SMTP)

c)

DNS requests

d)

FTP data


19

What is the main use of TELNET?

a)

Remote configuration and control of computer systems

b)

As a firewall

c)

To transfer files between computers

d)

None of the above


20

Which of the following
are

DCE device
s
?

a)

Cable Modem

b)

Switch

c)

Bridge

d)

POTS
MODEM



School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
7




28/10/2013


21

What
is the major advantage of RIP
?

a)

Ease of configuration

b)

Rapid convergence

c)

Good use of bandwidth

d)

Secure network
ing


22

What class of address does the IP address 192.168.2.12 belong?

a)

Class A

b)

Class B

c)

Class C

d)

None of the above. This is a private non
-
routable address


23

If I borrow
4

bits from the host field to create subnets, how many valid subnets
will there be available,

assuming use of subnet zero.
?

a)

32

b)

1
6

c)

14

d)

30


24

What is the subnet mask for the
following IP address 193.60.64.0/27

?

a)

255.255.255.192

b)

255.255.255.240

c)

255.255.255.224

d)

255.255.255.248


25

What is the first host address on the
second

subnetwork for the question
above?

a)

193.60.64.33

b)

193.60.64.17

c)

193.60.64.225

d)

193.60.64.32


26

If the subnet

mask is 255.255.255.160, how many hosts can exist on each of
the subnetworks?

a)

62

b)

254

c)

192

d)

None, this is not a valid subnet mask


27

Which type of address is contained in an Ethernet frame header?

a)

IPv6

b)

IPv4

c)

MAC

d)

DNS



School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
8




28/10/2013


28

ASCII is an acronym for

which of the following?

a)

American Standard Code for Information Indication

b)

American Standard Code for Information Interchange

c)

Alphabetical Standard Code for Information Interchange

d)

Amplified Standard Code for Information Interchange


29

Which o
ne of t
he f
ollowing statements is true?

a)

Frames are a layer 3 PDU

b)

Packets are a layer 4 PDU

c)

Frames are a layer 2 PDU

d)

Segments are a layer 3 PDU


30

The medium access control method used in shared Ethernet is:

a)

FSK

b)

CSMA/ CD

c)

Token priority

d)

Network Interface Card


31

What

is the broadcast address for the following address 202.16.34.71/26?

a)

202.16.74.255

b)

202.16.74.95

c)

202.16.74.63

d)

202.16.74.127


32

A

MAC

address has how many bits?

a)

24

b)

32

c)

48

d)

64


33

Which of the following
commands displays a summary of the interfaces
and
their current state
in the Cisco IOS?

a)

show running
-
config

b)

show ip interface brief

c)

show interfaces

d)

debug ip route


34

Which MS
-
DOS command
would be

used to
check the route chosen between
two computers
?

a)

tracert


b)

ping
-
t

c)

netstat
-
a

d)

nbtstat
-
n


35

In the
Cisco IOS, which key will autocomplete an incomplete command?


a)

CTRL + ALT + C

b)

Shift + *

c)

TAB

d)

Backspace

School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
9




28/10/2013


36

What would be the IP address for the interface S0/0 shown below?





a)

172.16.13.6

b)

172.16.13.4

c)

172.16.13.1

d)

It cannot be determined without extra
information


37

The standard connector used on category 5 cable is:

a)

BNC

b)

RJ
-
43

c)

RJ
-
45

d)

AUI


38

What is the maximum length of a jumper cable in horizontal cabling according
to EIA/TIA 568A/ 568B?

a)

3m

b)

90m

c)

5m

d)

6m






[Turn Over]



School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
10




28/10/2013


39

What is the most likely
default gateway address for the PC shown below?





a)

195.163.65.1

b)

195.163.65.129

c)

195.163.65.127

d)

195.163.65.255


40

Which of the following
would be the broadcast address for the PC in question
39?


a)

195.163.65.1

b)

195.163.65.129

c)

195.163.65.127

d)

195.163.65.255






Now that you have finished you must wait until the end

of the examination is announced.


You should check your answers for accuracy if you have time to spare.



School
of

Engineering


University
of

Greenwich


ITCN Summative




Page
11




28/10/2013