1.4 Network Security Flashcards
1
Q
What is malware?
A
- Malicious software
- Designed to cause malicious activity
2
Q
What is a Virus?
A
- Replicate
- Infect other computers
- Delete files
3
Q
What is Trojan?
A
- Disguised malware
4
Q
What is Worm?
A
- Self replicating
- Slows computer
5
Q
What is Ransomware?
A
- Encrypted files
- Demands payment
6
Q
What is an SQL injection?
A
- Malicious code to manipulate databases
7
Q
What is social engineering?
A
- Ability to obtain confidential information by people
8
Q
What ways can hackers exploit vulnerabilities?
A
- Unpatched software
- Out of date anti-malware
9
Q
What is encryption?
A
- Securing data
- Cannot be read without encryption key
10
Q
What is firewall?
A
- Packet inspection
- Drops packets that are suspicious
11
Q
What are the functions of the operating system?
A
- File management
- Memory management
- Multi tasking
- User management
- User interface
12
Q
What is a command line interface?
A
- Text based input
- Interacts with computer
13
Q
What is a menu interface?
A
- Select from choices
14
Q
What is a graphics user interface?
A
- Windows
- Icons
- Menu
- Pointer
15
Q
What is an interrupt?
A
- Signal sent to CPU
- External device
- Instruction that requires immediate attention
16
Q
What is a peripheral management?
A
- External device connected to computer
16
Q
What is a device driver?
A
- Device communicates with CPU via driver
16
Q
What is file management?
A
- Name files
- Allocate files
- Move files
- Save files
17
Q
What is memory management?
A
- Secondary storage copied to RAM for CPU to access
- Management leaves allocated spaces for files
17
Q
What is utility software?
A
- Perform extra functions
- Keep computer running efficiently
18
Q
What are the forms of utility software?
A
- Defragmentation
- Data compression
- Disk clean up
- Anti-virus
- Encryption
19
Q
What is defragmentation?
A
- Reorganising fragmented data within a storage medium
- Reader does not have to search through as much data
- Computer is more efficient
20
Q
What is encryption?
A
- Scrambling message
- Only encryption key holders can decipher
21
Q
A
