Module-3 Congestion Control Algorithms
Quiz by Rashmi K
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- Q1
Two broad categories of congestion control are
Active loop and Passive loop
Active control and Passive control
Open-control and Closed-control
Open-loop and Closed-loop
30s - Q2
Retransmission of packets must not be done when _______
Packet is corrupted
Packet is needed
Packet is lost
Packet is error-free
30s - Q3
Closed-Loop control mechanisms try to _________
Remove after congestion occurs
Prevent before congestion occurs
Prevent before sending packets
Remove after sometime
30s - Q4
The technique in which a congested node stops receiving data from the immediate upstream node or nodes is called as _______
Backpressure
Forward signaling
Admission policy
Backward signaling
30s - Q5
The packet sent by a node to the source to inform it of congestion is called _______
Backpressure
Explicit
Choke
Discard
30s - Q6
In the congestion avoidance algorithm, the size of the congestion window increases ____________ until congestion is detected.
multiplicatively
additively
suddenly
exponentially
30s - Q7
What is the role of Traffic Shaping in congestion prevention?
Regulating the rate of data transmission
Expanding network capacity
Diverting traffic to alternative paths
Identifying congested nodes
30s - Q8
Which congestion prevention policy aims to prioritize certain types of traffic during periods of congestion?
Jitter control
Load shedding
Quality of Service (QoS)
Traffic prioritization
30s - Q9
What mechanism is commonly used in Virtual-Circuit Subnets to notify routers about congestion?
Random Early Detection (RED)
Hop-by-Hop Congestion Avoidance (HCA)
Explicit Congestion Notification (ECN)
Backward Explicit Congestion Notification (BECN)
30s - Q10
What is the primary role of Load Shedding in congestion control?
Discarding less important traffic during congestion
Regulating data transmission rates
Allocating additional bandwidth
Dropping packets randomly
30s - Q11
What distinguishes a MAN (Metropolitan Area Network) from a WAN (Wide Area Network)?
MANs are larger in geographic scope
MANs are confined to a small geographic area
MANs use satellite connections for communication
MANs typically use the Internet for connectivity
30s - Q12
Which of the following is a key advantage of a VPN (Virtual Private Network) in internetworking?
Limited bandwidth
Decreased network scalability
Enhanced security for remote connections
Increased latency
30s - Q13
What does the term "tunneling" refer to in internetworking?
Physical connection of networks
Establishing secure connections
Dynamic routing between networks
Encapsulation of one protocol within another
30s - Q14
Which type of routing allows routers to dynamically update their routing tables based on network changes?
Hierarchical routing
Dynamic routing
Static routing
Default routing
30s - Q15
Which protocol is commonly used for creating secure tunnels over the Internet?
HTTP
VPN
SSH
SSL/TLS
30s