Question 1

What IPv4 protocol handles multicasting for tasks such as videoconferencing or teleconferencing?

Accepted Answer

A) ICMP 
B) ARP 
C) TCP 
D) IGMP

Question 2

Describe the OSPF routing protocol.

Accepted Answer

The answer of Describe the OSPF routing protocol....

Question 3

Matching
Match each correct item with the statement below.
-The router on a network that acceptsall unroutable messages from other routers.

Accepted Answer

A) administrative distance 
B) autonomous system number 
C) gateway of last resort 
D) gateway router 
E) interior router
F)latency
G)MTU (maximum transmission unit)
H)neighbor discovery
I)probe
J)routing metric

Question 4

What routing protocol criteria is defined as the time it takes to recognize a best path change in the event of a network outage?

Accepted Answer

A) administrative distance detection 
B) convergence time 
C) overhead calculation 
D) downed path detection

Question 5

The receiving host de-encapsulates the message at each layer in _______ order and then presents the payload to the receiving application.

Accepted Answer

The answer of The receiving host de-encapsulates the message at...

Question 6

Matching
Match each correct item with the statement below.
-A router that directs data between networkswithin the same autonomous system.

Accepted Answer

A) administrative distance 
B) autonomous system number 
C) gateway of last resort 
D) gateway router 
E) interior router
F)latency
G)MTU (maximum transmission unit)
H)neighbor discovery
I)probe
J)routing metric

Question 7

Which of the following is not a task handled by a router?

Accepted Answer

A) A router forwards broadcasts over the network. 
B) A router can reroute traffic if the path of first choice is down but a second path is available. 
C) A router can interpret Layer 3 and often Layer 4 addressing. 
D) A router can connect dissimilar networks.

Question 8

By default,the pathping command sends how many pings per hop?

Accepted Answer

A) 50 
B) 100 
C) 200 
D) 500

Question 9

What protocol replaces ARP,IGMP,and ICMPv4 on IPv6 based networks?

Accepted Answer

A) ARPng 
B) BGPv6 
C) IGMPv6 
D) ICMPv6

Question 10

What field in an IPv4 packet informs routers the level of precedence they should apply when processing an incoming packet?

Accepted Answer

A) Differentiated Services (DiffServ) 
B) Internet header length (IHL) 
C) Time to Live (TTL) 
D) Padding

Question 11

What TCP field below allows the receiving node to determine whether a TCP segment is corrupted during transmission?

Accepted Answer

A) checksum 
B) sliding window 
C) acknowledgement number 
D) TCP header length

Question 12

Matching
Match each correct item with the statement below.
-A router that connects an autonomous systemwith an outside network-for example,the router thatconnects a business to its ISP.

Accepted Answer

A) administrative distance 
B) autonomous system number 
C) gateway of last resort 
D) gateway router 
E) interior router
F)latency
G)MTU (maximum transmission unit)
H)neighbor discovery
I)probe
J)routing metric

Question 13

When viewing the routing table on a UNIX system,what flag indicates if a route is a usable route?

Accepted Answer

A) I 
B) H 
C) G 
D) U

Question 14

What happens when a router receives a packet with a TTL of 0?

Accepted Answer

A) The router attempts to forward the traffic on a local network 
B) The router drops the packet and sends an ICMP TTL expired message back to the host. 
C) The router resets the TTL to 128. 
D) The router marks the packet as corrupted and forwards it to the next hop.

Question 15

A _______ joins two or more networks and passes packets from one network to another.

Accepted Answer

The answer of A _______ joins two or more networks...

Question 16

What address does ARP work in conjunction with IPv4 to discover?

Accepted Answer

A) IP 
B) MAC 
C) ARP 
D) physical

Question 17

In a TCP segment,what field indicates how many bytes the sender can issue to a receiver while acknowledgement for the segment is outstanding?

Accepted Answer

A) urgent pointer 
B) sliding window 
C) sequence number 
D) URG flag

Question 18

___'s lack of sophistication makes it more efficient thanTCP.

Accepted Answer

The answer of ___'s lack of sophistication makes it more...

Question 19

At what layer of the OSI model would a TCP or UDP header be added to a payload?

Accepted Answer

A) Layer 7 
B) Layer 4 
C) Layer 2 
D) Layer 1

Question 20

IPv4 and IPv6 use the same packet format.

Accepted Answer

A) True 
 B)False

Exam 3: How Data Is Transported Over Networks

What IPv4 protocol handles multicasting for tasks such as videoconferencing or teleconferencing?

Describe the OSPF routing protocol.

Matching Match each correct item with the statement below. -The router on a network that acceptsall unroutable messages from other routers.

What routing protocol criteria is defined as the time it takes to recognize a best path change in the event of a network outage?

The receiving host de-encapsulates the message at each layer in _______ order and then presents the payload to the receiving application.

Matching Match each correct item with the statement below. -A router that directs data between networkswithin the same autonomous system.

Which of the following is not a task handled by a router?

By default,the pathping command sends how many pings per hop?

What protocol replaces ARP,IGMP,and ICMPv4 on IPv6 based networks?

What field in an IPv4 packet informs routers the level of precedence they should apply when processing an incoming packet?

What TCP field below allows the receiving node to determine whether a TCP segment is corrupted during transmission?

Matching Match each correct item with the statement below. -A router that connects an autonomous systemwith an outside network-for example,the router thatconnects a business to its ISP.

When viewing the routing table on a UNIX system,what flag indicates if a route is a usable route?

What happens when a router receives a packet with a TTL of 0?

A _______ joins two or more networks and passes packets from one network to another.

What address does ARP work in conjunction with IPv4 to discover?

In a TCP segment,what field indicates how many bytes the sender can issue to a receiver while acknowledgement for the segment is outstanding?

___'s lack of sophistication makes it more efficient thanTCP.

At what layer of the OSI model would a TCP or UDP header be added to a payload?

IPv4 and IPv6 use the same packet format.