WorksheetsNetwork final exam
Total questions: 21
Worksheet time: 51mins
Which of the following is a Layer 3 network device?
Hub
Switch
Router
Repeater
What is the broadcast IP address in the subnet 192.168.1.0/24?
192.168.1.0
192.168.1.1
192.168.1.255
192.168.0.255
Which protocol is used to find the MAC address of a device on a local network?
DNS
Arp
ICMP
DHCP
Which OSI layer is responsible for data encryption and compression?
Presentation
Application
Session
Data link
Which port number is used for HTTPS?
22
80
443
25
What is the main feature of a star topology?
Devices are connected in a loop
Devices are connected to a central hub or switch.
All devices are connected to each other.
Data is transmitted in a straight line
What type of network covers a city or metropolitan area?
LAN
WAN
MAN
PAN
Which transmission mode allows data to flow in only one direction?
Simplex
Half-Duplex
Full-Duplex
Multicast
Ransomware typically
Steals passwords without encrypting data.
Encrypts a victim's data and demands payment for decryption
Hijacks network traffic without user interaction.
Infects routers to block incoming connections.
A LAN typically
Operates over large geographical areas.
Connects devices within a local area such as a building.
Uses satellite communication exclusively.
Connects multiple cities through fiber-optic links.
A subnet mask of 255.255.255.0 can support up to 256 hosts.
True
Fasle
A MAC address is globally unique to a network device.
True
Fasle
Malware and ransomware are the same thing.
True
Fasle
Multicast traffic is sent to all devices in a network.
True
Fasle
A WAN typically connects devices across different cities or countries.
True
Fasle
In a bus topology, a single cable failure can disrupt the entire network.
True
Fasle
Full-duplex transmission allows data to flow in both directions at the same time.
True
Fasle
Ransomware attacks can only occur through email phishing attempts.
True
Fasle
What is the purpose of a subnet mask in a network?
Describe how ransomware operates and list two methods to overcome ransomware attacks.
You are given the IP address 192.168.10.0/26. Answer the following:
How many subnets can be created?
What is the range of usable IP addresses in the first subnet?
6
192.168.10.0 -192.168.10.63
6
192.168.10.1 - 192.168.10.64
4
192.168.10.0 -192.168.10.63
4
192.168.10.0 -192.168.10.64
