Networks all

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Code
Note
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Name and
Signature of
Supervisor
Name and
Signature of
the Proofreader
Observations
Part I: MCQ, identify the correct answer(s): put the correct answers in the table below:
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1. Which element is used in the EUI-64 process to create an IPv6 interface ID on an
IPv6 interface?
a) MAC address of the IPv6 compliant interface
b) an automatically generated 64-bit hexadecimal address
c) an IPv6 address provided by a DHCPv6 server
d) an IPv4 address configured on the interface
2. Which IPv6 prefix is reserved for communication between devices on the same
link?
e) FC00::/7
f)2001::/32
g) FE80::/10
h) FDFF::/7
Ecole Polytechnique Méditerranéenne Privée de Tunis
Semestre 1
Examination Main Session: Networks……
A.U : 2021 / 2022 Document : not allowed
Classe : 2nd year cycle Computer Systems, Software and Networks Calculatrice : autorisée
Number of pages: ……6…
Duration: 1h30
Barème :14/6 Proposed by : …… Néjib KHALFAOUI …… …………………………

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3. Which layers of the OSI model have the same functions as the network access layer
of the TCP/IP model? (Choose two answers.)
a. Network
b. Transport
c. Physics
d. Data link
e. Session
4. Which layer encapsulates the segments into packets?
a. Physics
b. Data link
c. Network
d. Transport
5. What does the network layer header identify?
a. The destination device on the local media
b. The path to take to reach the destination host
c. Bits to be transferred to the medium
d. The source application or process that generated the data
6. During the encapsulation process, what happens at the data link layer?
a. No address is added.
b. The logical address is added.
c. The physical address is added.
d. The port number of the process is added.
7. What information is added during encapsulation occurring at layer 3 of the OSI
model?
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a. MAC addresses of the source and destination
b. The protocol application of the source and destination
c. The port number of the source and destination
d. IP addresses of the source and destination
8. If the default gateway is misconfigured on the host, how will this impact
communications?
a. The host is unable to communicate on the local network.
b. The host can communicate with other hosts on the local network but is unable to
communicate with hosts on remote networks.
c. The host can communicate with other hosts on remote networks but is unable to
communicate with hosts on the local network.
d. There will be no impact on communications.
9.
Examine the illustration. Taking into account the addresses already in use and the
constraint of staying within the network range 10.16.10.0/24, what subnetwork
address could be assigned to the network that has 25 hosts?
a. 10.16.10.160/26
b. 10.16.10.128/28
c. 10.16.10.64/27
d. 10.16.10.224/26
e. 10.16.10.240/27
f. 10.16.10.240/28
10. What are two characteristics of RAM on a Cisco device? (Choose two suggestions.)
a) RAM provides non-volatile storage.
b) The current configuration of the equipment is stored in the RAM.
c) The contents of the RAM may be lost when the equipment is switched off and
on again.

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d) RAM is a component of Cisco switches, but not of Cisco routers.
e) The RAM can store multiple versions of IOS and configuration files.
11. Which service provides global, dynamic IPv6 addressing to end devices without
using a server to track available IPv6 addresses?
a) Dynamic DHCPv6
b) SLAAC
c) Static IPv6 addressing
d) DHCPv6 stateless
12. Which method can be used by two computers to ensure that packets are not dropped
because too much data is sent too quickly?
a) Encapsulation
b) Flow control
c) access method
d) Waiting time for the answer
13. Which statement accurately describes the TCP/IP encapsulation process when a PC
sends data over the network?
a) Data is sent from the Internet layer to the network access layer.
b) Packets are sent from the network access layer to the transport layer.
c) The segments are sent from the transport layer to the Internet layer.
d) Frames are sent from the network access layer to the Internet layer.
14. Three application layer protocols are part of the TCP/IP suite. Which ones? (Choose
three.)
a) ARP
b) DHCP
c) DNS
d) FTP
e) NAT
f) PPP
15. A Web client receives a response for a Web page from a Web server. From the
client's perspective, what is the correct order of the protocol stack used to decode
the received transmission?
a) Ethernet, IP, TCP, http
b) HTTP, TCP, IP, Ethernet
c) Ethernet, TCP, IP, http
d) HTTP, TCP, IP, Ethernet

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16. 16.
Examine the illustration. What is the destination MAC address of the Ethernet frame
when it leaves the Web server if the final destination is PC1?
a) 00-60-2F-3A-07-AA
b) 00-60-2F-3A-07-BB
c) 00-60-2F-3A-07-CC
(d) 00-60-2E-3A-07-DD
17. Which of these addresses is the shortest abbreviation of the IP address:
3FFE:1044:0000:0000:00AB:0000:0000:0057?
a. 3FFE :1044 ::AB ::57
b. 3FFE :1044 ::00AB ::0057
c. 3FFE :1044 :0 :0 :AB ::57
d. 3FFE :1044 :0 :0 :00AB ::0057
e. 3FFE :1044 :0000 :0000 :00AB ::0057
18. What type of address is automatically assigned to an interface when IPv6 is enabled
on it?
a. Global unicast
b. Link-local
c. Loop
d. Unique local
19. What does a successful ping request to the IPv6 ::1 address indicate?
a. The host is correctly wired
b. The default gateway address is correctly configured.
c. All hosts on the local link are available.
d. The link-local address is correctly configured.
e. The IP protocol is correctly installed on the host.
20. What is the prefix of the host address 2001:DB8:BC15:A:12AB::1/64?
a. 2001:DB8:BC15