Thursday, October 20, 2022

ITIL and COBIT

 ITIL: Information technology infrastructure library (ITIL)

 COBIT : Control Objectives for Information and Related Technologies

ITIL: The ITIL framework contains proven methodologies for how organizations can optimize their information technology service management  for growth and change.

 ITIL Service Lifecycle :

  1. Service Strategy
  2. Service Design
  3. Service Transition
  4. Service Operations
  5. Continual Service Improvements

COBIT: is an IT governance framework for businesses wanting to implement, monitor and improve IT management best practices.

Tuesday, October 18, 2022

What is artificial intelligence (AI)

Artificial intelligence is a wide-ranging of modern technology, the simulation of human intelligence processes by machines, especially computer systems. specific applications of AI include expert systems, natural language processing, speech recognition and machine.

 

Friday, October 14, 2022

Computer Networking

1. Which protocol does DHCP use at the Transport layer?

A. IP
B. TCP
C. UDP
D. ARP

Answer: C

 2.

Where is a hub specified in the OSI model?

A. Session layer
B. Physical layer
C. Data Link layer
D. Application layer

Answer:  B 

3. What does a VLAN do?

A. Acts as the fastest port to all servers.
B. Provides multiple collision domains on one switch port.
C. Breaks up broadcast domains in a layer 2 switch internetwork.
D. Provides multiple broadcast domains within a single collision domain.

Answer:  C

4. What is the main reason the OSI model was created?

A. To create a layered model larger than the DoD model.
B. So application developers can change only one layer's protocols at a time.
C. So different networks could communicate.
D. So Cisco could use the model.

Answer: C

5. You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server?

A. 100 kbps
B. 1 Mbps
C. 2 Mbps
D. 10 Mbps

Answer:  D

 

 

 

 

Saturday, March 26, 2022

 

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