1.4 Network Security Flashcards

1
Q

What is malware?

A
  • Malicious software
  • Designed to cause malicious activity
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2
Q

What is a Virus?

A
  • Replicate
  • Infect other computers
  • Delete files
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3
Q

What is Trojan?

A
  • Disguised malware
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4
Q

What is Worm?

A
  • Self replicating
  • Slows computer
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5
Q

What is Ransomware?

A
  • Encrypted files
  • Demands payment
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6
Q

What is an SQL injection?

A
  • Malicious code to manipulate databases
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7
Q

What is social engineering?

A
  • Ability to obtain confidential information by people
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8
Q

What ways can hackers exploit vulnerabilities?

A
  • Unpatched software
  • Out of date anti-malware
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9
Q

What is encryption?

A
  • Securing data
  • Cannot be read without encryption key
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10
Q

What is firewall?

A
  • Packet inspection
  • Drops packets that are suspicious
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11
Q

What are the functions of the operating system?

A
  • File management
  • Memory management
  • Multi tasking
  • User management
  • User interface
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12
Q

What is a command line interface?

A
  • Text based input
  • Interacts with computer
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13
Q

What is a menu interface?

A
  • Select from choices
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14
Q

What is a graphics user interface?

A
  • Windows
  • Icons
  • Menu
  • Pointer
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15
Q

What is an interrupt?

A
  • Signal sent to CPU
  • External device
  • Instruction that requires immediate attention
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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