Questions and Answers of Business Data Networks

a. Distinguish between standards and protocols.2a.) Standards mean the same thing as _______.a. Semanticsb. Syntaxc. Rulesd. Protocolsb. What is a network standard?c. What is interoperability?2c.)
a. Compute the minimum number of TCP segments required to open a connection, send an HTTP request and response message, and close the connection. Justify this number by creating a table showing each
a. What are IETF standards called? (Spell out the name and give the acronym.)1a.) Internet standards are published as _______.a. RFCsb. IETFsc. TCP/ IPsd. Internet Protocolsb. W hat factors in the
How do you think TCP would handle the problem if an acknowledgment were lost, so that the sender retransmitted the unacknowledged TCP segment, therefore causing the receiving transport process to
a. Compare Internet core routers with home access routers in terms of functionality.27a1.) ________ have access points.a. Home access routersb. Internet core routersc. Both A and Bd. Neither A nor
a. Are all data link addresses EUI-48 addresses?26a.) All data link addresses are EUI-48 addresses.a. Trueb. Falseb. In which header are source and destination IP addresses found?26b.) Source and
a. Are packets carried inside frames, or are frames carried inside packets?25a.) Which of the following is true?A. Frames are carried inside packets.B. Packets are carried inside framesC. Both a and
a. In Figure 1-22, how many physical links will there be when Router A sends a Packet to Router B. b. How many data links will there be? c. When Client Host Y sends a packet to Router B,
a. Distinguish between physical links and data links.23a.) In a single switched network, a _______ connects consecutive switches.a. Physical linkb. Data linkc. Routed. None of the aboveb. In a
a. Distinguish between the originating host, the DNS server, and the target host.b. What is the purpose of a DNS lookup?22b.) When Host A wishes to communicate with Host B, a DNS server provides the
a. What type of host gets a dynamic IP address?21a.) On the Internet, a ________ host usually gets a dynamic IP address.a. Clientb. Serverc. Both A and Bd. Neither A nor Bb. What type of host gets a
a. Why does the Internet need supervisory protocols?b. Which of the following is an Internet supervisory protocol?a. DNSb. IPc. Both A and Bd. Neither A nor B
a. There are six routers between the source and destination host. How many transport processes will be involved? Explain.19a.) There are 10 routers between the source and destination hosts. How many
a. Distinguish between data links and routes.18a.) paths across a single network are called ________.a. Routesb. Data linksc. Physical linksd. None of the aboveb. In Figure 1-15, how many data links
a. What does a router do when an IP packet arrives?17a.) Routing is based on a(n) _________.a. IP addressb. Single-network addressc. Either A or Bd. Neither A nor Bb. What is router forwarding
a. What are the three parts of an IP packet? 16a.) Which is NOT in an IP packet?a. Internet headerb. Transport headerc. Data link headerd. All of the above ARE part of the IP packetb. In which
a. How many bits long are IPv4 addresses?15a.) IPv4 addresses are ______ bits long.a. 32b. 64c. 128d. None of the above15a.) _____ addresses are 32 bits long.a. IPv4b. IPv6c. EUI-48d. None of the
a) What does the internet process on the destination host do when a packet arrives for it?14a.) When a frame arrives, the data link process on the destination host .a) Adds a headerb) Removes a
a. What are the three parts of an I P packet?b. An IP packet may include a(n) _____.a. application message or fragmentb. TCP segment or UDP datagramc. Both A and Bd. Neither A nor B
a. What two processes does the network stack provide?12a.) The network stack implements the ________ layer process(es).a. Applicationb. Transportc. Physicald. Data linkb. What is the maximum size of
a. What are networked applications?b. Is the client always a browser?11b.) The client program is nearly always a browser.a. Trueb. Falsec. Is the server always a webserver?11c.) The server
a. Distinguish between client and server hosts.10a.) When you use your tablet to access the Internet, the tablet is a ________.a. Client hostb. Server hostc. Both A and Bd. Neither A nor Bb. What
a. Why is the Internet often depicted as a cloud?9a.) Depicting the Internet as a cloud symbolizes that ________.a. The Internet is amorphousb. The Internet today is too complex to be understandable
a. What does “Inter” in Internet mean.8a.) In the name Internet, “inter” means _______.a. Betweenb. Interiorc. Internationald. Interplanetaryb. Why is this significant?
a. Why is the Internet’s ability to give broad access a good thing?b. What danger does it bring?7b.) From the point of view of security, the Internet’s ability to give access to nearly everyone
Repeat for Router 1 and Router 2.In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets and frames?
a. Who owns the Internet?6a. Who owns the Internet?a. The U.S. governmentb. The United Nationsc. The IETFd. No oneb. Who is in charge of the Internet?6b.) Who is in charge of the Internet?a. The U.S.
Repeat for Router 1 and Router 3.In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets and frames?
a. What continuing changes in the Internet are contributing to its ability to support new applications constantly?5a.) Which of the following is leading to new applications constantly?a. Increasing
Repeat for Host E and Router 3.In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets and frames? How
a. What do we call any device connected to the Internet?4a.) We call any device connected to the Internet a(n) ______.a. IPb. Clientc. Routerd. Hostb. When you use a laptop to connect to the
Repeat for Host A to Host C.In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets and frames? How
a. What services do Internet service providers provide?3a.) ISPs _____.a. Carry traffic in the Internetb. Connect users to the Internetc. Both A and Bd. Neither A nor Bb. In Figure 1-2, through which
Repeat for Host C sending a packet to Host E.In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets
When was commercial activity on the Internet first allowed?
In Figure 1-28, when Host A transmits a packet to Host B, how many physical links, data links, and routes will there be along the way? How many packets and frames? How many switches and routers?
a. What is a D DoS attack?1a.) Flooding a host with traffic so that it cannot serve its legitimate users is a ______ attack.a. Hackingb. Virusc. Malwared. DoSb. In what two ways was the

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