WorksheetsNSS Mock Test 1 (Chapters 1 to 4)
Total questions: 85
Worksheet time: 3hrs 50mins
What is the purpose of a LAN?
To allow computers to communicate with each other in the same area
To allow computers to communicate with each other anywhere in the world
Identify the network model shown
Peer-to-peer model
Client/Server model
The smallest type of network is..
PAN
LAN
WAN
MAN
A computer network is...
Sharing of resources
Communication from one computer to another computer.
Exchange of data and information among users via network
All
Identify the image shown
Router
Hub
Switch
192.168.10.3 is an example of..
Subnet mask
IP address
Gateway
A computer must have an IP address when..
Playing media from the hard drive
Connecting to a Wi-Fi hotspot
A home computer network is sometimes also called a…
LAN
PAN
Identify the image shown above..
Switch
Network Cable
Network Interface Card
Hub
Peripherals are basically
devices connected to a computer system to add functionality.
systems without compute systems that function alone.
used to transform computer systems.
will work only without computer systems.
The picture attached is most likely a
Router
Hub
Switch
Modem
The most basic device, within a computer network that connects computers together and has no other function, is
Router
Switch
Hub
Modem
A Router can be referred to as a Gateway on a network.
True
False
Switches and routers can be combined into a single device in some network configurations.
True
False
Wireless routers use which medium for data transmission?
Fiber optics.
Radio waves.
Copper cables.
Power cables.
The data transmission speed of a router or switch is known as
Bandwidth.
Latency.
Capacity.
Rate.
There is no difference between Hubs and Switches. They work exactly the same.
True.
False.
Which of the following are components of a Network? [Choose 4 answers]
Hubs
Switches
Routers
Mouse and Keyboards
CAT 5 UTP cables.
Network components can be grouped into which 4 categories?
Hosts
Accounts
Peripherals
Media
Devices
Which server automatically assigns an IP address to a host on the network?
DNS Server
DHCP Server
Web Server
File Server
Which one of the following identifies the network on which the host is connected?
Default Gateway
IP Address
Subnet Mask
Physical Address
Which one of the following identifies the host on the network?
Default Gateway
IP Address
Subnet Mask
Memory Address
Which one of the following identifies the networking device that the host uses to access the Internet or another remote
network?
Default Gateway
IP Address
Subnet Mask
Physical Address
An IP address that is set manually by the network admin is a
Dynamic IP address
Routed IP address
Remote IP address
Static IP address
An IP address can only be manually assigned.
True
False
When a network grows in size, which 3 activities are needed?
Documentation.
Logical organization.
Reactive responses.
Hasty implementation.
Planning.
These are known as
End devices.
Intermediate devices.
Network media.
Network peripherals.
These are known as
End devices.
Intermediate devices.
Network media.
Network topologies
These are known as
End devices
Intermediate devices.
Network media.
Network topologies.
A ______ illustrates the device names, IP addressing, configuration information, and network designations.
Logical Topology
Physical Topology
Network Floor Plan
Network Model
Which are the 2 main Network Architectures?
Client / Server
Device to device
Peer to peer
End devices
Identify 2 advantages of Peer-to-Peer networks.
Easy to set up.
Low cost.
Secure.
Scalable.
Identify 2 disadvantages of a Client-Server network.
Centralized administration.
High cost.
Easy to set up.
Single point of failure.
What network topology is this?
Bus.
Mesh.
Star.
Ring.
What network topology is this?
Bus
Mesh
Ring
Star
Which network topology is this?
Bus
Mesh
Star
Ring
Which network topology is this?
Bus
Mesh
Star
Ring
Which of the following networks use a Token for orderly data transmission?
Bus
Mesh
Star
Ring
How many layers are there in the OSI model?
4
5
6
7
What does PDU stand for?
Protocol data unit
Port data unit
Packet data unit
Process development unit
What can you find in the Network layer of the OSI model?
Packets
Frames
Bits
Segments
What can you find the Data Link layer of the OSI model?
Frames
Packets
Bits
Segments
What can you find in the Physical layer in the OSI model?
Bits
Segments
Packets
Frames
What can you find in the Transport layer of the OSI model?
Segments
Packets
Frames
Bits
Cables and Hubs are associated with which layer in the OSI model?
Physical
Data Link
Network
Transport
Which layer are MAC Addresses and Switches associated with in the OSI model?
Data Link
Physical
Network
Session
IP Addresses and Routers are associated with which layer of the OSI model?
Network
Physical
Data Link
Transport
TCP, UDP and Port numbers are associated with which layer of the OSI model?
Transport
Physical
Data Link
Network
Data compression and encryption are associated with which layer of the OSI model?
Transport
Presentation
Session
Physical
SMTP, HTTP, FTP are associated with which layer of the OSI model?
Application
Presentation
Session
Transport
The objective of data compression is to _____ .
reduce the file size
increase the file size
hide the file contents
encapsulate the file with headers and trailers
Which one of the following techniques ensures a file transmitting on the network is secure even if it is being intercepted?
Encryption
Decryption
Encapsulation
De-encapsulation
In the session layer, ______ allows multiple applications to use the network at the same time.
multiplexing
encryption
compression
addressing
The network port used by the https protocols is ____ .
port 8080
port 25
port 143
port 21
A packet at the network layer is encapsulated with which 2 items to create a frame in the data link layer?
header
trailer
segments
divisions
The TCP/IP network model has how many layers?
4
5
6
7
Select ALL the layers in a TCP/IP model.
Application
Transport
Internet
Network Access
Physical
The network device that is used to amplify and extend the transmission distance of a signal is the ______.
repeater
router
switch
hub
A bridge operates at which layer of the OSI model?
physical
application
network
data link
A router makes use of a _______ to determine the next 'hop' of packets to another router on the WAN.
routing table
mac address table
address pool
switch
Which of the following is used to route data packets in the network layer of the OSI model?
IP addresses
MAC addresses
Service set identifier (SSID)
Dynamic host configuration protocol (DHCP)
These days, wireless routers are integrated with a switch and DHCP service into a single network device.
True
False
Which protocol has become the de facto standard for wired networks?
Ethernet
Internet
ARCnet
Token ring
Who assigns the MAC or physical address of a network adapter?
Network adapter manufacturer
Switch
Router
MAC Address Server
The diagram shows a ______ .
frame
packet
segment
capsule
A physical or MAC address is assigned permanently to a network adapter and never changes.
True
False
An IP address has 2 portions. Which are they?
Network portion
Host address
Subnet mask
Physical address
The sending host can use which protocol to discover the MAC address of any host on the same LAN.
Address Resolution Protocol (ARP)
Dynamic Host Configuration Protocol (DHCP)
Transfer Control Protocol (TCP)
Internet Message Access Protocol (IMAP)
In a computer, information is stored as ______ .
binary bits
electrical pulses
light pulses
photons
A single binary digit (1 or 0) is called a _____ .
bit
byte
hexadecimal
pulse
Characters, videos, audios and photos can all be represented as digital bits.
True
False
This is a number system to the base _____ .
10
2
3
0
What is the decimal value of the binary number 110?
6
4
8
3
What is the decimal value of the binary 101?
5
3
10
6
Which of the following does not belong to a Hexadecimal numbering system?
0
10
A
F
The Hexadecimal representation of a decimal value 13 is _____ .
A
C
D
F
The Hexadecimal representation of a decimal value 16 is _____ .
001016
E
F
G
Each Hexadecimal digit is represented by ______ binary bits?
1
4
8
16
Which one of the following sequence is how a DHCP server responds to a request for an IP address to a client?
DHCPDISCOVER - DHCP OFFER - DHCPREQUEST-DHCP ACK
DHCPOFFER-DHCPREQUEST-DHCPACK-DHCPDISCOVER
DHCPDISCOVER-DHCPREQUEST-DHCPOFFER-DHCPACK
DHCPACK-DHCPDISCOVER-DHCPOFFER-DHCPREQUEST
What does DHCP server stand for?
Dynamic Host Configuration Protocol
Destination Host Cite Protocol
Dynamic History Consolidation Protocol
Differentiated Holistic Configuration Protocol
What is the purpose of a DHCP server?
To assign IP address automatically to hosts from an IP address pool.
To resolve domain name space into IP address.
To host web portals or web pages.
To route packets from one network to another.
The process of segmenting a network into multiple smaller network spaces is called ______ .
subnetting
routing
address resolution
classless addressing
Which service allows multiple devices on a private network to share a single public IP address on a WAN interface.
Network Address Translator (NAT)
Dynamic Host Configuration Protocol (DHCP)
Domain Name Service (DNS)
Address Resolution Protocol (ARP)
