CS601 Quiz 4 by HB

Q1. _________ is not a function of Data Link Control.

1. Flow Control
2. Error Control
3. Modulation
4. Framing

Q2. Stop-and-Wait protocol is used for

1. Flow control only
2. Neither flow nor error control
3. Error control only
4. Both flow and error control

Q3. Go-Back-N protocol is one of the _______________ layer protocols, which is used to control the flow of data during the transmission.

1. Data link
2. Presentation
3. Physical
4. Network

Q4. High-Level Data Link Control (HDLC) defines ________ types of frames to deal with the transfer modes.

1. Two
2. Four
3. Six
4. Three

Q5. PAP and CHAP are used by ____________ as Authentication Protocols.

1. ICMP
2. TCP/ IP
3. SMTP
4. PPP

Q6. In ______________ protocol, the sender sends one frame at a time and waits for an acknowledgment before sending the next one.

1. Stop-and-Wait
2. Simple
3. Go-Back-N
4. Selective-Repeat

Q7. S-frames in High-Level Data Link Control (HDLC) are only used to transfer __________ information.

1. Original
2. Control
3. User data
4. Redundant

Q8. In character oriented protocol, each character of frame is encoded using---------- coding system.

1. ASCII
2. NRZ
3. Bipolar AMI
4. Unicode

Q9. ______________ is an Authentication Protocol, which is used by the PPP to authenticate passwords.

1. CHAP
2. PAP
3. LCP
4. ICMP

10. which uses two-step process to authenticate user information.

a. PAP · b. LCP · c. ICMP · d. CHAP

11. A switched network consists of a series of interlinked _____ called switches.

a. Points · b. Nodes · c. Roots · d. Systems

12.

In digital communication, why do we use a checksum for error detection in a message?

1. To ensure even or odd parity
2. To facilitate faster data transmission
3. To correct errors
4. To encrypt the data

13. __________ is the process of converting digital data to digital signals.