Network Security (J277)

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

• 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

 An intranet is behind a network device, which gives some protection against hackers, viruses, and so on. Which is the network device?

• Proxy server
• VPN
• Firewall
• None of the three

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

RAM stands for ...

• Read Access Memory
• Random Application Memory
• Read Application Memory
• Random Access Memory