Worksheets2.3 & 2.4 Quiz
Total questions: 20
Worksheet time: 10mins
What does VoIP stand for?
Virtual Organisation Internet Protocol
Voice over Internet Protocol
Visual Output Information Processing
Video Online Integration Platform
What is the main function of VoIP?
To encrypt network traffic
To allow voice communication over data networks
To provide video streaming services
To test bandwidth performance
What does SIP stand for?
Session Internet Protocol
Secure Internal Protocol
Session Initiation Protocol
Standard Information Process
What is the role of SIP in communications?
To compress audio files
To establish, manage, and end VoIP sessions
To prevent packet loss
To provide internet browsing services
What is the relationship between VoIP and SIP?
SIP provides encryption for VoIP
SIP is a protocol that manages VoIP calls
VoIP controls SIP servers
They are unrelated technologies
Which metric measures how much data can be transmitted per second?
Speed
Bandwidth
Latency
Jitter
Which metric measures the time it takes for data to travel from one point to another?
Jitter
Latency
Packet loss
Speed
What does jitter describe in a network?
Lost packets of data
Variability in packet arrival times
Total bandwidth capacity
Delay caused by firewalls
Which of the following directly impacts call quality by missing parts of the conversation?
Speed
Packet loss
Bandwidth
Latency
Which metric most affects how long a user waits for a video call to respond?
Jitter
Latency
Speed
Packet loss
What is the purpose of a codec in communications?
To store user passwords
To compress and uncompress data
To prevent viruses
To create error codes
Which codec is commonly used for audio in a lossy format?
MPEG-4
MP3
FLAC
WAV
Which codec provides lossless audio compression?
MP3
MPEG-4
FLAC
AAC
Which codec can be used for both lossy and lossless video compression?
FLAC
MPEG-4
MP3
GIF
Which hardware factor is important for multitasking performance?
GPU type
Number of processor cores
Screen resolution
Network interface
Which type of operating system allows multiple users to access at the same time?
Single-user
Multi-user
Graphical only
Text-based
Which software type is designed for managing large sets of structured data?
Word processor
Database
Presentation software
Spreadsheet
Which of the following is a fault indicator shown on a monitor as a blinking light sequence?
Beep codes
Error message
Blink codes
Error number
What do beep codes typically indicate?
Hard drive space usage
Hardware faults during startup
Operating system installation
Password errors
Why is technical documentation useful when diagnosing problems?
It provides encryption for data
It gives structured guidance and explanations for troubleshooting
It automatically fixes software issues
It prevents system reboots
