Chapter 4 Review Questions

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

What process is used to establish a TCP connection?

Three-way handshake

Which Linux utility provides output similar to Wireshark's?

tcpdump

Give three examples of routing metrics used by routers to determine the best of various available routing paths.

(Any three) Hop count, theoretical bandwidth, actual throughput, path latency (or delay), path load, MTU, cost, reliability, network topology

List three IGPs (interior gateway protocols).

(Any three) RIP, RIPv2, OSPF, IS-IS, EIGRP

What is the Internet standard MTU?

1,500 bytes

What four functions do all routers perform?

1. Connect dissimilar networks. 2. Interpret Layers 3 and 4 addressing and other information. 3. Determine the best path for data to follow. 4. Reroute traffic if a primary path is down but another path is available.

A routing protocol's reliability and priority are rated by what measurement?

AD

Which routing protocol does an exterior router use to collect data to build its routing tables?

BGP

What field in a TCP segment is used to determine if an arriving data unit exactly matches the data unit sent by the source?

Checksum

What is the difference between dynamic ARP table entries and static ARP table entries?

Dynamic ARP table entries are created when a client makes an ARP request, whereas static ARP table entries are entered manually using the ARP utility.

When a router can't determine a path to a message's destination, where does it send the message?

Gateway of last resort

Which two protocols manage neighbor discovery processes on IPv4 networks?

ICMP and ARP

What database does a router consult before determining the most efficient path for delivering a message?

Its routing table

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Which protocol is supported by ICMPv6 to facilitate neighbor discovery on an IPv6 network?

NDP (Neighbor Discovery Protocol)

At which OSI layer does IP operate?

Network Layer

Which OSI layer is responsible for directing data from one LAN to another?

Network Layer

Which two fields in an Ethernet frame help synchronize device communications but are not counted toward the frame's size?

Preamble and SFD

What kind of route is created when a network administrator configures a router to use a specific path between nodes?

Static route

Which protocol's header would a Layer 4 device read and process?

TCP

What three characteristics about TCP distinguish it from UDP?

TCP is connection-oriented, uses sequencing and checksums, and provides flow control.


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