iClicker Questions CNIT 201E Chapter Last modified

Review Questions

A.Application, Presentation, or Session B.Transport C.Network D.Data Link E.Physical What layer of the OSI model encapsulates data and adds a header containing port numbers to it? 1 of 2

A.Application, Presentation, or Session B.Transport C.Network D.Data Link E.Physical What layer of the OSI model encapsulates data and adds a header containing IP addresses to it? 2 of 2

After 5.1

A.Ver. B.TOS C.DF D.TTL E.Protocol What IPv4 Packet Header Field determines the number of hops before the packet is dropped? 1 of 4

A.Ver. B.TOS C.DF D.Fragment Offset E.Protocol What IPv4 Packet Header Field has the value 06 for TCP and 17 for UDP? 2 of 4

A.Ver. B.TOS C.DF D.Fragment Offset E.Header Checksum What IPv4 packet header field can be used to prevent a packet from being subdivided into two packets? 3 of 4

A.Ver. B.TOS C.IHL D.Identification E.Fragment Offset What IPv4 packet header field is used to give voice traffic priority over regular traffic? 4 of 4

After 5.2

A.Host B.Switch C.Hub D.Router E.Server What device stops broadcasts, while forwarding other traffic? 1 of 4

A.192 B C D E.5 What is the host portion of this address: / 24? 2 of 4

A packet is sent to What portion of the IP Header contains that value? A. A. B. B. C. C. D. D. E. E. 3 of 4

A packet is sent from to When the packet leaves router 2, what is the network portion of its destination IP address? Router 2 4 of 4 A. A B. B C. C D. D E. E. Something else

After 5.3

A.ROUTE PRINT B.ROUTE C.ROUTE /ALL D.IPCONFIG /ALL E.IPCONFIG /ROUTE What command displays the routing table on a Windows XP computer? 1 of 4

A.The packet is returned B.The packet is stored in a cache C.The packet is dropped, and an error message is sent back to the sender D.The packet is dropped silently E.Different routers handle this problem differently—it is not standardized What happens when a router finds no route to forward a packet in its routing table? 2 of 4

A router has four routes in its routing table, as shown to the right. Which item will be used to send a packet addressed to ? A B C D E. None of the above of 4

A router has four routes in its routing table, as shown to the right. Which item will be used to send a packet addressed to ? A B C D E. None of the above of 4

Lab Notes

Lab 5.5.1: Examining a Device’s Gateway – do in the classroom Lab 5.5.1: Examining a Device’s Gateway – do in the classroom Lab 5.5.2: Examining a Route – do in the classroom Lab 5.5.2: Examining a Route – do in the classroom All the others are Packet Tracer activities, and you can do them anywhere All the others are Packet Tracer activities, and you can do them anywhere

Review Questions 5.1 – 5.3

A.TCP Port B.IP address C.MAC Address D.More than one of the above E.None of the above What address fields are found in the Data portion of a TCP Segment? 1 of 5

A.TCP Port B.IP address C.MAC Address D.More than one of the above E.None of the above Which item is not normally found in an IP packet? 2 of 5

A.TCP B.IP C.UDP D.More than one of the above E.None of the above A computer receiving data is unable to process it as rapidly as it is coming in. Which protocol(s) below will detect this problem and slow the transmission rate? 3 of 5

A VoIP packet requires a high transmission priority. What portion of the IP Header contains that information? A. A. B. B. C. C. D. D. E. E. 4 of 5

A router has four routes in its routing table, as shown to the right. Which item will be used to send a packet addressed to ? A B C D E. None of the above of 5

After 5.4

A network designer must use old, slow routers and slow network links. Which routing technique will give the fastest network performance? A. Static Routing B. OSPF C. RIP D. EIGRP E. The answer cannot be determined from the information provided 1 of 5

A.TCP Port B.IP address C.MAC Address D.More than one of the above E.None of the above What address field(s) are commonly found in the Data portion of an IP Packet? 2 of 5

A.TCP Port B.IP address C.MAC Address D.More than one of the above E.None of the above Which item is not normally found in the IP header? 3 of 5

What portion of the IP Header controls the maximum number of routers a packet can pass through? A. A. B. B. C. C. D. D. E. E. 4 of 5

A.Application, Presentation, or Session B.Transport C.Network D.Data Link E.Physical Which OSI layer performs data fragmentation? 5 of 5