WorksheetsEC8702_ADWSN::Unit-4_Quiz-5
Total questions: 30
Worksheet time: 30mins
The network equipment used for the transmission of data are simply specialized computers that are designed for the acceptance, storage, and __________ of data signals.
understanding
structuring
retransmission
reforming
__________ are considered the “traffic cops” for the flow of information inside and outside of the network, and to accomplish this have signaling rules called “protocols” on what to do for network failure for the rerouting of traffic.
Routers
Hubs
Gateways
Switches
The term MAC or __________ is the method for defining the data to be moved on a switch’s forwarding from one switch port to another until it reaches the destination computer or router for further forwarding.
machine access control
media address control
media access control
machine address control
In the __________, the network interface card’s MAC address is used to create a one-to-one relation to a logical address called the Internet Protocol Address, or more simply the “IP address.”
physical layer
application layer
transport layer
network layer
What can virus affect?
Keyboard
Hard drive
RAM
All of the above
What is encryption?
Where only the sender and recipient can read the message.
A method of bypassing viruses
A form of anti-virus
Where data is translated into code so that only authorised users, or users with the key can decrypt it.
What must a user need to decrypt a file?
Coin
Key
Token
Graph
Trial and error method used by programs to decode encrypted data such as passwords or Data Encryption Standard (DES) keys, through exhaustive effort rather than employing intellectual strategies.
Brute force attack
Theft
DoS
Phishing
Flooding a server with useless traffic causes servers to become overloaded preventing them responding to legitimate client-server requests from users.
Malware
Surfing
Denial of service attack
Configuration
Interception of packets across a network
Phishing
Packet sniffing
Network forensics
Firewalls
Performs a ‘barrier’ between a potential attacker and the computer system
Packet sniffing
Firewalls
Brute force attacks
SQL injection
Allows a system administrator to set up a hierarchy of users
Firewall
Network forensics
User access levels
Passwords
Encrypting messages through movement of each letter a certain number of places to the left in the alphabet
Cipher
Key
Policies
Strong Passwords
How many keys are used in asymmetrical encryption?
(a)
The message which I am going to encrypt is called the (a) .
Which of these types of cryptography is stronger?
symmetrical
asymmetrical
Trying to access data by going through lists of possible passwords is called...
A Brute Force attack
Phishing
Blagging
DOS attack
What are NETWORK FORENSICS?
A way of analysing a network for hardware faults
A way of finding out why a network failed
A set of rules for ensuring safe use
A way of analysing a network to find possible weaknesses or "back doors"
Which of these rules is NOT a good guideline for managing passwords?
Do not use a previous password
Do not use a password with identifiable items (such as phone number)
Make the password as long as possible
Ensure that it includes a mix of character types
What method of attack is shown in the image?
DOS
Brute Force
SQL Injection
DNS Pharming
What method is being used to prevent vulnerabilities, in the image shown?
A software firewall
A hardware firewall
Encryption
Password Protection
How many of the following methods could be used to distribute a virus? (choose as many as you think are appropriate)
Via an attachment sent in an online/instant message
Through files on a memory stick / CD
Through a link in an email
Through a program downloaded from the internet
1. Which of the following is a technique to mask the source IP address of a network attack?
a. DDoS
b. Replay
c. Sniffing
d. Spoofing
1. Which of the following malware is MOST LIKELY used by attackers to carry out Distributed Denial of Services (DDOS) attacks?
a. Trojan.
b. Rootkit
c. Botnet.
d. Adware.
Which of the following backup procedures copies all changes made since the last full backup?
A. Incremental backup
B. Differential backup
C. Archive backup
D. None of the above.
1. Which of the following elements is most likely to be an issue for Ping flood?
a. Confidentiality
b. Integrity
c. Availability
d. Non-repudiation.
Network security protects data from threats to its ... (select all correct answers)
Confidentiality
Integrity
Relevance
Availability
Select all the valid means of protecting data confidentiality on a network ...
Backing up sensitive data
Varying levels of access rights for different users
Stopping deliberate or accidental misuse of data by authorised users
Encrypting sensitive data
Choose all the possible types of cyberattack ...
Which of the following encryption concepts is PKI based on?
Elliptical curve
Quantum
Asymmetric
Symmetric
