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CompTIA Network+ N10-007 Certification Guide
Chapter 6 Routing IP Packets
1) Both PC1 and Server 1 have a default gateway. What is the purpose of a default gateway?
A) Block packets
B) Forward frames
C) Route packets to a different subnet
D) Route packets to the same subnet
2) What is the purpose of ARP?
A) ARP resolves the MAC address to a NetBIOS name.
B) ARP resolves an IP address to a hostname.
C) ARP locates the default gateway of the network.
D) ARP resolves the IP address of a Host to its MAC address.
3) The routes on R1 and R2 are directly connected routes.
4) At the moment, PC1 cannot reach the Internet. You add a static default route to R1 that sends
all traffic to an unknown destination out S1/1. Can a user on PC1 access the Internet?
A) Yes, PC1 has Internet access.
B) No, packets will not make it past R1.
C) No, packets can make it to the Internet, but they will never make it back to PC1.
D) No, packets will stop at R2.
5) What is the administrative distance of a directly connected network?
A) 0
B) 90
C) 110
D) 170
6) What is the administrative distance for an internal EIGRP route?
A) 1
B) 90
C) 110
D) 170
7) What are the two methods used to prevent loops in a distance vector routing protocol?
A) Split horizon and hold-down timer
B) Split horizon and poison reverse
C) Poison reverse and hop count
D) Split horizon and hop count
8) Which of the following is an exterior gateway protocol?
A) BGP
B) RIP
C) OSPF
D) EIGRP
9) Which of the following is a distance vector routing protocol that uses a metric of hops?
A) IS-IS
B) OSPF
C) EIGRP
D) RIP
10) For static NAT to work, how many inside global addresses are needed for inside local
addresses?
A) One inside global addresses for unlimited inside local addresses
B) Two inside global addresses for every inside local address
C) Ten inside global addresses for unlimited inside local addresses
D) One inside global address for every inside local address
11) R1 is using both NAT and PAT. What is the purpose of the port numbers in the translation
table?
A) Basic NAT uses the port numbers to track separate communication flows.
B) PAT uses the port numbers to track separate communication flows.
C) The port numbers are not used.
D) PAT only uses the destination port to track separate communication flows.
12) Which of the following is a multicast routing protocol?
A) PIM
B) IGMP
C) IS-IS
D) OSPF
13) What is the hop count that is used by RIP to indicate an unreachable metric?
A) 16
B) 0
C) 15
D) 255
14) What factors are used to calculate the OSPF cost?
A) Bandwidth, delay
B) Bandwidth
C) Delay
D) Bandwidth, MTU
15) What factors are used in the calculation of the default EIGRP metric?
A) Delay
B) Bandwidth
C) Bandwidth, delay
D) Bandwidth, MTU
16) Which message type was added with IGMP Version 2?
A) Join
B) Prune
C) Combine
D) Leave
17) Which feature was added with IGMPv3 that allowed a client to specify the joining of a group
and a specific source server?
A) SSM
B) SRM
C) SME
D) SMJ
18) Which mode of PIM uses a source distribution tree?
A) Sparse mode
B) Dense mode
C) Broadcast mode
D) Source mode
19) Which mode of PIM uses a rendezvous point (RP)?
A) Broadcast mode
B) Dense mode
C) Sparse mode
D) Source mode
