Week 1

Question 1

Data communication is a combination of two techniques?

Answer 1

Telecommunications and Data processing

Question 2

Telecommunications is?

Answer 2

process of transmitting information that is converted to a agreed code using electrical medium or electro-optic

Question 3

Component of communication model?

Answer 3

1. sender
2. medium
3. data
4. receiver
5. protocol

Question 4

2 jenis switching techniques?

Answer 4

1. Circuit Switching
   mirip simulasi menelepon. sender dan receiver harus siap.
2. Packet switching
   mirip simulasi mengirim email, dimana receiver tidak harus siap.

Question 5

4 jenis topologi?

Answer 5

1. Mesh
2. Star
3. Bus
4. Ring

Question 6

7 model OSI (Open Systems Interconnection)?

Answer 6

layer 7 : Application layer
layer 6 : Presentation layer
layer 5 : Session layer
layer 4 : Transport layer
layer 3 : Network layer
layer 2 : Data Link layer
layer 1 : Physical layer

Question 7

jelaskan 7 model OSI

Answer 7

layer 7: Application layer
to allow access to network resources

layer 6 : Presentation layer
to translate, encrypt, and compress data

layer 5 : Session layer
to establish, manage and terminate sessions

layer 4 : Transport layer
to provide reliable process-to-process message delivery and error recovery

layer 3 : Network layer
to move packets from source to destination; to provide internetworking

layer 2 : Data Link layer
to organize bits into frames; to provide hop-to-hop delivery

layer 1 : Physical layer
to transmit bits over a medium; to provide mechanical and electrical specifications

Question 8

5 layer dalam TCP/IP Protocol Suite?

Answer 8

layer 5 : Application layer
layer 4 : Transport layer
layer 3 : Network layer
layer 2 : Data Link layer
layer 1 : Physical layer

Question 9

3 kekurangan OSI model dibanding TCP/IP?

Answer 9

1. waktu OSI muncul, TCP/IP sudah banyak digunakan dan banyak waktu dan biaya dikeluarkan untuk TCP/IP. sehingga jika beralih ke protocol suite lain akan sangat mahal.
2. beberapa layers pada OSI tidak sepenuhnya terdefinisi lengkap. contohnya pada presentation layer dan session layer.
3. OSI tidak menunjukkan level perfoma yang tinggi untuk berpindah dari TCP/IP ke OSI model.