Chapter 3

Match the components in the notation 100Base-T to the specification. (Not all options are used.) 100 Base T speed in Mbps baseband transmission twisted-pair cable

-100 → speed in Mbps -BASE → baseband transmission -T → twisted-pair cable

When a computer assembles a frame to be sent over the network, what is the maximum size of an Ethernet frame? 64 bytes 128 bytes 1024 bytes 1518 bytes

1518 bytes

What makes it possible for e-mail to be sent and received on a wide variety of devices, including cell phones, PDAs, laptops, and desktop computers? -All of the devices run the same operating system software. -There is a single provider of e-mail server software. -The devices use the same e-mail client software, so they are compatible. -E-mail software is written using standards and protocols that ensure compatibility.

E-mail software is written using standards and protocols that ensure compatibility.

What type of information is contained in an ARP table? -switch ports associated with destination MAC addresses -domain name to IP address mappings -routes to reach destination networks -IP address to MAC address mappings

IP address to MAC address mappings

What address type does a switch use to make selective forwarding decisions? -source IP -destination IP -source MAC -destination MAC

destination MAC

What is the purpose of the core layer in the Cisco hierarchical network design model? -network access to end devices -high-speed backbone switching -aggregation point for smaller networks -flow control between networks

high-speed backbone switching

Which three elements do all communication methods have in common? (Choose three.) message destination message type message source message data transmission medium message priority

message destination message source transmission medium

Which two layers of the OSI model specify protocols that are associated with Ethernet standards? (Choose two.) physical layer data link layer network layer transport layer session layer

physical layer data link layer

Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work? -TCP/IP model -protocol model -reference model -hierarchical design model

reference model

What role does a router play on a network? -forwarding Layer 2 broadcasts -forwarding frames based on a MAC address -selecting the path to destination networks -connecting smaller networks into a single broadcast domain

selecting the path to destination networks

Which three layers of the OSI model make up the application layer of the TCP/IP model? (Choose three.) data link network transport session presentation application

session presentation application

Which term refers to the set of rules that define how a network operates? -standard -protocol -model -domain

standard