DC: Chapter 4 Review

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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 four functions do all routers perform?

Connect dissimilar networks Interpret Layers 3 and 4 addressing and other information Determine the best path for data to follow

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.

In a TCP segment, what field indicates how many bytes the sender can issue to a receiver before acknowledgment is received?

sliding-window

Which Linux utility provides output similar to Wireshark's?

tcpdump

What is the Internet standard MTU?

1,500 bytes

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

Preamble SFD

Pick three IGPs (interior gateway protocols).

RIPv2, OSPF, EIGRP

What process is used to establish a TCP connection?

Three-way handshake

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

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

What three characteristics about TCP distinguish it from UDP?

TCP is connection-oriented Uses sequencing and checksums Provides flow control

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

T/F: IPv4 and IPv6 use the same packet format.

False

T/F: Routing Information Protocol (RIP) is an interior gateway protocol that uses a link-state algorithm.

False

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

Gateway of last resort

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

Hop count Theoretical bandwidth Path latency (or delay)

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?

Routing table

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

T/F: IP is an unreliable, connectionless protocol, as it does not establish a session to send its packets.

True


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