Chapter 3

11 September 2022
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question
Which dynamic routing protocol was developed to interconnect different Internet service providers?
answer
BGP
question
Which routing protocol is limited to smaller network implementations because it does not accommodate growth for larger networks?
answer
RIP
question
What two tasks do dynamic routing protocols perform? (Choose two.)
answer
update and maintain routing tables network discovery
question
When would it be more beneficial to use a dynamic routing protocol instead of static routing?
answer
on a network where there is a lot of topology changes
question
When would it be more beneficial to use static routing instead of dynamic routing protocols?
answer
on a network where dynamic updates would pose a security risk
question
What is a purpose of the network command when configuring RIPv2 as the routing protocol?
answer
It identifies the interfaces that belong to a specified network.
question
A network administrator configures a static route on the edge router of a network to assign a gateway of last resort. How would a network administrator configure the edge router to automatically share this route within RIP?
answer
Use the default-information originate command.
question
What is the purpose of the passive-interface command?
answer
allows a router to receive routing updates on an interface but not send updates via that interface
question
Which route would be automatically created when a router interface is activated and configured with an IP address?
answer
C 192.168.0.0/24 is directly connected, FastEthernet 0/0
question
Refer to the exhibit. Which two types of routes could be used to describe the 192.168.200.0/30 route? (Choose two.)
answer
ultimate route level 2 child route
question
What occurs next in the router lookup process after a router identifies a destination IP address and locates a matching level 1 parent route?
answer
The level 2 child routes are examined.
question
Which route would be used to forward a packet with a source IP address of 192.168.10.1 and a destination IP address of 10.1.1.1?
answer
O 10.1.1.0/24 [110/65] via 192.168.200.2, 00:01:20, Serial0/1/0
question
Which two requirements are used to determine if a route can be considered as an ultimate route in a router's routing table? (Choose two.)
answer
contain an exit interface contain a next-hop IP address
question
What is a disadvantage of using dynamic routing protocols?
answer
They send messages about network status insecurely across networks by default.
question
Which two statements are true regarding classless routing protocols? (Choose two.)
answer
sends subnet mask information in routing updates allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology
question
Refer to the exhibit. Based on the partial output from the show ip route command, what two facts can be determined about the RIP routing protocol? (Choose two.)
answer
RIP version 2 is running on this router and its RIP neighbor. The command no auto-summary has been used on the RIP neighbor router.
question
While configuring RIPv2 on an enterprise network, an engineer enters the command network 192.168.10.0 into router configuration mode. What is the result of entering this command?
answer
The interface of the 192.168.10.0 network is sending only version 2 updates.
question
A destination route in the routing table is indicated with a code D. Which kind of route entry is this?
answer
a route dynamically learned through the EIGRP routing protocol
question
Refer to the exhibit. Which interface will be the exit interface to forward a data packet with the destination IP address 172.16.0.66?
answer
Serial0/0/1
question
Which type of route will require a router to perform a recursive lookup?
answer
an ultimate route that is using a next hop IP address on a router that is not using CEF
question
Which route is the best match for a packet entering a router with a destination address of 10.16.0.2?
answer
S 10.16.0.0/24 [1/0] via 192.168.0.9
question
A router is configured to participate in multiple routing protocol: RIP, EIGRP, and OSPF. The router must send a packet to network 192.168.14.0. Which route will be used to forward the traffic?
answer
a 192.168.14.0/26 route that is learned via RIP
question
What is different between IPv6 routing table entries compared to IPv4 routing table entries?
answer
By design IPv6 is classless so all routes are effectively level 1 ultimate routes.