Last Updated on July 18, 2021 by InfraExam
312-38 : Certified Network Defender : Part 11
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What is the range for registered ports?
- 1024 through 49151
- 0 through 1023
- Above 65535
- 49152 through 65535
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How many layers are present in the TCP/IP model?
- 10
- 5
- 4
- 7
-
In which of the following transmission modes is communication uni-directional?
- Root mode
- Full-duplex mode
- Half-duplex mode
- Simplex mode
-
CSMA/CD is specified in which of the following IEEE standards?
- 802.3
- 802.2
- 802.1
- 802.15
-
What is the response of an Xmas scan if a port is either open or filtered?
- RST
- No response
- FIN
- PUSH
-
Which of the following fields in the IPv6 header replaces the TTL field in the IPv4 header?
- Next header
- Traffic class
- Hop limit
- Version
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Which of the following IEEE standards defines a physical bus topology?
- 802.4
- 802.5
- 802.6
- 802.3
-
Which of the following protocols is described as a connection-oriented and reliable delivery transport layer protocol?
- UDP
- IP
- SSL
- TCP
-
Which of the following protocols is used for inter-domain multicast routing?
- BGP
- RPC
- VoIP
- RADIUS
-
How many layers are present in the OSI layer model?
- 5
- 4
- 7
- 9
-
Which of the following is an electronic device that helps in forwarding data packets along networks?
- Router
- Hub
- Repeater
- Gateway
-
Which of the following represents a network that connects two or more LANs in the same geographical area?
- PAN
- WAN
- MAN
- SAN
-
The IP addresses reserved for experimental purposes belong to which of the following classes?
- Class E
- Class C
- Class A
- Class D
-
Which of the following layers is closest to the end user?
- Application layer
- Physical layer
- Session layer
- Presentation layer
-
Which of the following IEEE standards defines the token passing ring topology?
- 802.4
- 802.5
- 802.3
- 802.7
-
Which of the following layers of the OSI model provides physical addressing?
- Application layer
- Network layer
- Physical layer
- Data link layer
-
Which of the following protocols sends a jam signal when a collision is detected?
- ALOHA
- CSMA/CA
- CSMA/CD
- CSMA
-
Which of the following key features limits the rate a sender transfers data to guarantee reliable delivery?
- Ordered data transfer
- Error-free data transfer
- Flow control
- Congestion control
-
Which of the following OSI layers is sometimes called the syntax layer?
- Presentation layer
- Application layer
- Physical layer
- Data link layer
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In which of the following transmission modes is data sent and received alternatively?
- Simplex mode
- Bridge mode
- Half-duplex mode
- Full-duplex mode