Font size
WorksheetsRevision OCR J277 1.1-1.4
Total questions: 15
Worksheet time: 8mins
I look like a normal piece of software but secretly I will infect your system – What am i?
Trojan Horse
Virus
Phishing Email
Ransomware
I bombard the network with requests using bots, which crashes the network – What am i?
Spyware
Malware
Firewall
DDOS
I don’t know your name, but I contact you anyway. I depend on your participation to be successful. – What am i?
SPAM Email
Phishing Email
Fishing Email
I scan the network, I also scan the computers. If I find something malicious, I remove it.
Disk Defragmenter
Firewall
System Update
Anti-Virus Software
Data travels across networks in
Nibbles
Parts
Bytes
Packets
The ALU....
does any maths or logic problems for the CPU
stores data inside the CPU
sends out control signals for the CPU
holds specific data for the fetch-decode-execute cycle
The number of times per second that a computer can perform the FETCH EXECUTE CYCLE is dictated by:
RAM
Cache size
Clock Speed
The number of cores
How many of the following are examples of Embedded Systems?
Mobile Phone
Washing Machine
Microwave
Fridge
Laptop
Rank the units of data storage in order from smallest to largest..
MB > KB > Byte > TB >GB
KB > Byte > MB > TB > GB
Byte > KB > MB > GB > TB
TB > GB > MB > KB > Byte
What is a LAN?
Local Area Network
Local Access Network
Latency Area Network
Legal Access Network
What does DNS stand for?
Digital Network Server
Domain Network System
Domain Name Server
Digital Name System
Which of these Protocols deals with Email?
HTTP, TLS and DNS
POP, IMAP and SMTP
DCHP and FTP
IPv4 and IPv6
