brush up

Question 1

DHCP (Dynamic Host Configuration Protocol)

Answer 1

Automatically gives devices an IP address and other network settings (like gateway and DNS info).

Question 2

DNS (Domain Name System)

Answer 2

Translates website names into IP addresses that computers understand.

Question 3

Coaxial Cable

Answer 3

used for cable television, connecting modems and surveillance cameras.

Question 4

POP3

Answer 4

Recieves emails doesnt synch

Question 5

IMAP

Answer 5

Recieves emails does synch

Question 6

Router

Answer 6

Responsible for access to the Internet and can be known as the “Gateway”.

Question 7

Modem

Answer 7

Used to translate analog signals to digital signals and send direct connection from ISP Internet service provider.
Cable modem connects to a TV cable box while a traditional modem is connected to a phone line.

Question 8

Firewall

Answer 8

is software or a hardware device that allows or denies network traffic.
Firewalls can open or close network ports and enable or disable network programs from data transmission.

Question 9

IAAS

Answer 9

You rent virtual hardware: servers, storage, and networking.

You manage the OS, apps, and data.

Provider manages the physical servers and virtualization.

Question 10

PAAS

Answer 10

You focus on developing apps — the provider handles servers, OS, and runtime. Perfect for developers.

Question 11

SAAS

Answer 11

You use a complete application that runs on the provider’s infrastructure. No setup or management — just sign in and use.

Question 12

Data manipulation commands

Answer 12

select, insert,delete,update

Question 13

data definitions

Answer 13

create,alter,drop,permissions

Question 14

proxy

Answer 14

proxy server acts as a middleman between your computer and the internet. When you send a request (like visiting a website), the proxy forwards it on your behalf, then sends the response back to you.

Question 15

Dos

Answer 15

Sending enough requests to overload a resource or even stopping its operation.

Question 15

man in the middle

Answer 15

Intercepting communications between computers to steal information transiting through the network.

Question 16

brute force attack

Answer 16

attack:Is a trial-and-error method used to get access to certain data such as passwords.