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5.0
Computer Networking: A Top-Down Approach,
Chapter 4 Questions with Detailed Verified Answers
(100% Correct Answers) /Already Graded A+
Quiz: Network layer availability
Ans: In every host and router
Quiz: 2 key network-layer functions
Ans: forwarding and routing
Quiz: Forwarding
Ans: move packets from router's input to appropriate router's output
Quiz: Routing
Ans: determine route take by packets from source to destination
Quiz: Why use address ranges?
Ans: 4 billion IP addresses
Quiz: longest prefix matching
Ans: when looking for forwarding table entry for given destination address,
use longest address prefix that matching destination address
Sunday, 02 March 2025
,Quiz: 2 key router functions
Ans: run routing protocols, forward datagrams
Quiz: routing architecture
Ans: routing processor (compute forwarding tables, routing, management
control plane, done in software), high-speed switching fabric (forwarding
data plane, done in hardware)
Quiz: Input ports
Ans: line termination (physical layer); link layer protocol to receive; lookup,
forwarding, queueing
Quiz: decentralized switching
Ans: given datagram destination, lookup output port using forwarding table
in input port memory. Complete input port processing at line speed. Queuing
if datagrams arrive faster than forward rate into switch fabric
Quiz: switching fabric
Ans: transfer packet from input buffer to output buffer
Quiz: switching rate
Examstudy - Stuvia US
, Ans: rate at which packets are transfered from input to output, desirable at N
* line rate, with N inputs
Quiz: switching fabric types
Ans: memory, bus, crossbar
Quiz: switching via memory
Ans: switching under control of CPU, packet copied to main memory, speed
limited by memory bandwidth
Quiz: switching via bus
Ans: datagram moves via a shared bus, bus contention (speed limited by
bus bandwidth)
Quiz: switching via crossbar
Ans: overcome bus bandwidth, connect processors to multiprocessors,
parallel transmissions
Quiz: output ports
Ans: datagram buffer and queue, link layer protocol to send, line termination
Quiz: output port buffering
Examstudy - Stuvia US
In today's fast-paced educational landscape, students need reliable resources to excel in their studies.
5.0
Computer Networking: A Top-Down Approach,
Chapter 4 Questions with Detailed Verified Answers
(100% Correct Answers) /Already Graded A+
Quiz: Network layer availability
Ans: In every host and router
Quiz: 2 key network-layer functions
Ans: forwarding and routing
Quiz: Forwarding
Ans: move packets from router's input to appropriate router's output
Quiz: Routing
Ans: determine route take by packets from source to destination
Quiz: Why use address ranges?
Ans: 4 billion IP addresses
Quiz: longest prefix matching
Ans: when looking for forwarding table entry for given destination address,
use longest address prefix that matching destination address
Sunday, 02 March 2025
,Quiz: 2 key router functions
Ans: run routing protocols, forward datagrams
Quiz: routing architecture
Ans: routing processor (compute forwarding tables, routing, management
control plane, done in software), high-speed switching fabric (forwarding
data plane, done in hardware)
Quiz: Input ports
Ans: line termination (physical layer); link layer protocol to receive; lookup,
forwarding, queueing
Quiz: decentralized switching
Ans: given datagram destination, lookup output port using forwarding table
in input port memory. Complete input port processing at line speed. Queuing
if datagrams arrive faster than forward rate into switch fabric
Quiz: switching fabric
Ans: transfer packet from input buffer to output buffer
Quiz: switching rate
Examstudy - Stuvia US
, Ans: rate at which packets are transfered from input to output, desirable at N
* line rate, with N inputs
Quiz: switching fabric types
Ans: memory, bus, crossbar
Quiz: switching via memory
Ans: switching under control of CPU, packet copied to main memory, speed
limited by memory bandwidth
Quiz: switching via bus
Ans: datagram moves via a shared bus, bus contention (speed limited by
bus bandwidth)
Quiz: switching via crossbar
Ans: overcome bus bandwidth, connect processors to multiprocessors,
parallel transmissions
Quiz: output ports
Ans: datagram buffer and queue, link layer protocol to send, line termination
Quiz: output port buffering
Examstudy - Stuvia US
