WorksheetsUnit 18 and Unit N02
Total questions: 69
Worksheet time: 2hrs 13mins
Name
Class
Date
1.
Physical or logical arrangement of network is
a)
Topology
b)
Routing
c)
Networking
d)
None of the mentioned
2.
In this topology there is a central controller or hub
a)
Star
b)
Mesh
c)
Ring
d)
Bus
3.
______________ is used to connect a computer to the network
a)
HDD
b)
NIC
c)
RAM
d)
Motherboard
4.
_______________ is a common connection point for devices in a network. Commonly used to connect segments of a LAN. Contains multiple ports.
a)
A router
b)
A hub
c)
A Switch
d)
None of the mentioned
5.
A basic computer network can be described as
a)
a minimum of five computers linked together
b)
a number of palmtop computers.
c)
Two or more computers that are linked together
d)
the use of satellites linking computers together.
6.
Method(s) to move data through a network of links and switches
a)
Packet switching
b)
Circuit switching
c)
Line switching
d)
Both a and b
7.
All of the following statements are true EXCEPT
a)
Wireless networks are convenient
b)
Wireless networks are generally slower than wired LANs.
c)
Wireless networks use radio transmitters.
d)
Wireless networks are generally faster than wired networks
8.
A (n) ____________ broadcasts messages to all devices connected to a LAN.
a)
switch
b)
port
c)
hub
d)
node
9.
The primary difference between a LAN and a WAN is the:
a)
number of software programs available
b)
geographical area
c)
variety of hardware devices.
d)
number of hardware devices
10.
Each individual computer and networked peripheral attached to a LAN is a:
a)
node
b)
GPS receiver
c)
router
d)
mesh network
11.
Standard telephone cables containing copper wires are known as __________ cable
a)
coaxial
b)
fibre-optic
c)
Wi-Fi
d)
twisted pair
12.
MAN stands for
a)
metropolitan area network
b)
multifunction area network
c)
metropolitan arranged network.
d)
manufactured arrangement of networks.
13.
The collection of common pathways between networks on a WAN is known as a
a)
node
b)
hub
c)
backbone
d)
router
14.
Twisted Pair cable uses what kind of connector?
a)
RJ-11
b)
RJ-45
c)
BNC
d)
ST
15.
Wireless communication uses which of the following to transmit data between devices on a LAN?
a)
Radio frequencies
b)
LED-generated light
c)
Fibre optics
d)
None of the above
16.
How many pairs of wires make up a UTP cable
a)
2
b)
4
c)
6
d)
8
17.
Which of these statements is true
a)
A client-server network has a central computer that provides services to the rest of the network
b)
A client-server network cannot be used to share files
c)
A client-server network is cheap and easy to set up
d)
Each computer on a client-server network is maintain separately
18.
Where are you most likely to find a peer-to-per network
a)
In a large organisation
b)
In a large office
c)
In a home
d)
Across several offices in a company
19.
Which of these is a benefit of a peer-to-peer network
a)
Antivirus scans can be run across all computers from one computer
b)
All software updates can be run across all computers from one computer
c)
All computers can be maintained from one computer
d)
Files and peripherals can be shared
20.
Which of these is the correct definition of a router
a)
Forwards data packets along a network
b)
A type of transmission media that provides the greatest bandwidth
c)
Corrects errors that are found in data packets
d)
A server within a network
21.
Which transmission media is capable of having a much higher bandwidth
a)
Coaxial
b)
Plastic
c)
Twisted pair cable
d)
Fibre optic
22.
Which of these components is internal to a computer and is required to connect the computer to a network?
a)
Wireless Access Point
b)
Network Interface card
c)
Switch
d)
Hub
23.
Data rate provided by 802.11g standard is:
a)
11 Mbps
b)
54 Mbps
c)
100 Mbps
d)
210 Mbps
24.
It is a wireless networks that can operate without access points:
a)
Ad hoc
b)
ESS
c)
BSS
d)
SSID
25.
It is considered to be the strongest security protocol
a)
SSID
b)
WPA
c)
WEP
d)
WPA2
26.
The strength of security protocols is because of:
a)
Who is monitoring the network
b)
Used encryption method
c)
Using passwords
d)
High speed connectivity
27.
WPA stands for:
a)
Wi-Fi Protected Access
b)
Wi-Fi Private Access
c)
Wireless Protection Access
d)
Wireless Private Access
28.
Which network hardware is said to be intelligent as it can send data to the intended computer and not every computer
a)
Hub
b)
Switch
c)
Bridge
d)
Repeater
29.
A bridge is a device connects two local area networks (LANs), or two segments of the same LAN together. True or False?
a)
True
b)
False
30.
What transmission media would you use to connect to a network interface card (NIC) in a wired network?
a)
Cat or ethernet cable
b)
Twisted pair
c)
Fibre optic
d)
Twin and earth
31.
What is the purpose of a repeater in a computer network?
a)
Stores user files, enabling access of files on any computer on a network. Shares files between network users.
b)
Is used to extend transmissions so that the signal can cover longer distances
c)
A device that connects two local area networks (LANs), or two segments of the same LAN together
d)
Used to link all computers on a network as cables from each one feed into a port on the hub
32.
If 2 computers try to send data packets at the same time there could be a ...
a)
Disaster
b)
Crash
c)
Collision
d)
Conflict
33.
An extranet is designed for the exclusive use within an organization.
a)
True
b)
False
34.
A gateway connects networks using different communications.
a)
True
b)
False
35.
A server provides a service to one or may clients to share files, folder or printers.
a)
True
b)
False
36.
A LAN or (local area network) connects computers across the world.
a)
True
b)
False
37.
A modem enable a computer to transmit data over telephone line
a)
True
b)
False
38.
Protocols are rules that the computer uses to communicate.
a)
True
b)
False
39.
Architecture in which one or more computers on the network acts as a server
a)
Peer-to-Peer Network
b)
Client Server Network
c)
Wired Home Network
40.
The Physical layer is the first layer of the OSI model.
a)
True
b)
False
41.
Which OSI model layer initiates the flow of information?
a)
Physical
b)
Session
c)
Application
d)
Presentation
42.
Transport layer protocols break large data units into ____.
a)
PDUs
b)
segments
c)
frames
d)
block IDs
43.
____ is the process of reconstructing segmented data
a)
Reassembly
b)
Resegmenting
c)
Reengineering
d)
Realigning
44.
In which OSI model layer does IP operate?
a)
Physical
b)
Transport
c)
Network
d)
Data Link
45.
The ____ is a fixed number associated with a device’s NIC.
a)
physical address
b)
frame address
c)
LLC address
d)
logical address
46.
One of the following components working at physical layer
a)
Switch
b)
Hub
c)
PC
d)
Router
47.
It is the layer that offers a physical address so a device’s data can be sent on the network
a)
Data-Link Layer
b)
Transport Layer
c)
Network Layer
d)
Physical Layer
48.
The most common transport layer protocols:
a)
TCP, IP
b)
TCP, UDP
c)
IP, IPX
d)
IPX, SPX
49.
The protocol that is known to be connection-oriented:
a)
TCP
b)
IP
c)
UDP
d)
IPX
50.
The layer that is responsible for message encryption/decryption, compression and translation is:
a)
Layer 4
b)
Layer 6
c)
Layer 7
d)
Layer 5
51.
HTTP layer works at Layer
a)
2
b)
4
c)
6
d)
7
52.
One of the following ways is NOT a proper way to avoid unauthorized access
a)
Use strong passwords
b)
Use antivirus
c)
Use firewalls
d)
Use network monitor tools
53.
Eavesdropping is:
a)
The unauthorized real-time interception of a private communication, such as a phone call or video conference
b)
It is any technical effort to manipulate the normal behavior of network connections and connected systems
c)
The ways in which you can lose your hardware and data
d)
The use of a computer or its data for unapproved or possibly illegal activities
54.
It is a kind of TCP/IP attacks where the attacker is sending enough requests to overload a resource or even stopping its operation:
a)
DoS/DDoS
b)
Man-in-the-middle
c)
Spoofing
d)
DNS poisoning
55.
Unwanted windows that designed to capture your attention and lead you to advertising sites:
a)
Popups
b)
Trojans
c)
Virus
d)
Spams
56.
It is the process of enforcing policies: determining what types or qualities of activities, resources, or services a user is permitted
a)
Authentication
b)
Authorization
c)
Accounting
d)
Physical Security
57.
It is used to protect private network from external access through internet:
a)
Firewall
b)
Popup blocker
58.
IPSec works by authenticating and encryption of each IP packet of a communication session:
a)
True
b)
false
59.
Which mode provides security between gateway-to-gateway?
a)
Transfer mode
b)
Tunnel mode
c)
Transport mode
d)
Both A and C
60.
AH stands for:
a)
Authorization Header
b)
Authentication Header
c)
Accounting Header
d)
Authentication Host
61.
VPN stands for:
a)
Vital Private Network
b)
Vital Public Network
c)
Virtual Private Network
d)
Virtual Public Network
62.
Which of the VPN security that prevent anyone from reading or copying data as it travels across the Internet?
a)
Confidentiality
b)
Data integrity
c)
Access control
d)
Authentication
63.
Which of the following Intruders flood servers, systems or networks with traffic?
a)
Denial Of Service
b)
e-mail borne viruses
c)
packet sniffing
d)
All of the above
64.
Which of the following wireless network topologies contain an access point?
a)
Peer-to-Peer topology
b)
Ring topology
c)
Infrastructure topology
d)
None of the above
65.
--------is the process of placing an entire packet within another packet and sending it over a network
a)
Tunneling
b)
encryption
c)
authentication
66.
is a client/server protocol and software that enables remote access servers to communicate with a central server to authenticate dial-in users.
a)
LEAP
b)
RADIUS server
c)
AAA
67.
Security protocol used in almost 100% of secure Internet transactions
a)
SSL
b)
AAA
c)
IPSEC
68.
is a network device that has the ability to operate at higher layers of the OSI reference model
a)
MLS
b)
Router
c)
Bridge
69.
what is the protocol that is developed by Cisco Systems?
a)
RADIUS
b)
AAA
c)
LEAP
d)
AES
100 %
