What information does the next hop entry in a routing table identify?
The first router in the path to the destination network.

A router is connected to a network 192.169.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. The router is also configured with a static route of 0.0.0.0 with a mask of 0.0.0.0. The router receives a packet addressed to the network 10.1.0.0/16. What will the router do with the packet.
Forward the packet to the next hop router specified by the route network 0.0.0.0

A router is connected to a network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. There is no default route on router. The router receives a packet addressed to network 10.1.0.0/16. What will the router do with the packet?
Drop the packet

Which of the following is a characteristic of static routing when compared to dynamic routing?
All routers must be manually updated on the router

Which two of the following tasks do routers perform?
- Maintain information about paths through an internetwork.
- Route data based on logical network addresses

Which of the following routing protocols divides the network into areas, with all networks required to have an area 0 (area 0 identifying the backbone area)?
OSPF

Which of the following protocols is classified as a balanced hybrid routing protocol?
EIGRP

Which of the following routing protocols are classified as a link state routing protocols?
- IS-IS
- OSPF

What are the main differences between the OSPF and IS-IS routing protocols?
OSPF requires an area 0, while IS-IS does not

Which of the following protocols has a limit of 15 hops between any two networks?
RIP

What is the main difference between RIP and RIP2?
RIP uses classful protocol, while RIP2 is classless protocol

Under which of the following circumstances might you implement BGP on your company network and share routes with Internet routers?
If the network is connected to the Internet using multiple ISPs

Which of the following best describes OSPF?
OSPF is a classless link-state routing protocol

You have a private network connected to the internet. Your routers will not share routing information about your private network with Internet routers. Which of the following best describes the type of routing protocol you would use?
IGP

have a router configured to share routing information using RIP. In addition, you have a single static route that identifies a default route for all other networks? .
Manually reconfigure the default route to point to the new next hop router

A router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. The next hop router for network 192.168.3.0 has changed. You need to make the change with the least amount of effect possible.
Wait for convergence to take place

You have a network configured to use the OSPF routing protocol. Which of the following describes the state when all OSPF routers have learned about all other routes in the network?
Convergence

When multiple routes to a destination exist, what is used to select the best possible route?
Metric

Which of the following routing protocols uses paths, rules, and policies instead of a metric for making routing decisions?
BGP

Which if the following are true for the IS-IS routing protocol?
- Divides large networks into areas
- Supports IPv6 routing

Your computer has an IP address of 161.13.5.15. Your computer is on a
Public Network

Which of the following IP addresses is a valid IP address for a host on a public network?
142.15.6.1

Which of the following is not one of the ranges of IP addresses defined in RFC 1918 that are commonly used behind a NAT server?
169.254.0.1-169.254.255.254

You have a computer that is connected to the internet through a NAT router. You want to use a private addressing scheme for your computer. Which of the following IP addresses could you assign to the computer? (Three answers)
10.0.12.15
192.168.12.253
172.18.188.67

You have a small network at home that is connected to the Internet. On your home network you have a server with the IP address of 192.168.55.199/16. All computers on your home network can connect to the internet. From your work office, you try to access your home computer using it's IP address, but are unable to communicate with the server. You are able to connect to other hosts on the Internet. Why can't you access the server?
Private addresses are not accessible through the internet

Which of the following associates a port number with a host on a private network?
PAT

You have a small network at home that is connected to the internet. On your home network you have a server with the IP address of 192.168.55.199/16. You have a single public address that is shared by all hosts on your private network. You want to configure the server as a web server and allow internet hosts to contact the server to browse a personal web site. What should you use to allow access?
Static NAT

You are the network administrator for a small company that implements NAT to access the Internet. However, you recently acquired 5 servers that must be accessible from outside your network. Your ISP has provided you with 5 additional registered IP addresses to support these new servers but you don't want the public access these servers directly. You want to place these servers behind your firewall on the inside network yet still allow them to be accessible to the public from the outside. Which method of NAT translation should you implement for these 5 servers?
Static

You want to connect your small company network to the Internet. Your ISP provides you with a single IP address that is to be shared between all hosts on your private network. You do not want external hosts to be able to initiate connection to internal hosts. What type of NAT should you implement?
Dynamic

Which of the following techniques allows incoming traffic addressed to a specific port to move through a NAT router and be forwarded to a specific host?
Port Forwarding

You manage a network with a single switch. All hosts connect to the network through the switch. You want to increase the security of devices that are part of the accounting department. You want to make sure Broadcast traffic sent by an accounting computer is only received by other accounting computers, and you want to implement ACLs to control traffic sent to accounting computers through the network. What should you do?
Use a router to configure a subnet for the accounting computers.

What is the primary purpose of gateway redundancy?
To overcome a single point of failure on the next hop router

Which of the following protocols provide gateway redundancy?
- VRRP
- HSRP
- GLBP

Which process reduces the size of the routing table by advertising a single route as the destination for a group of contiguous subnets?
Route summarization

IGRP
100

RIP
120

Static Route
1

EIGRP Internal Route
90

OSPF
110

EIGRP Summary Route
5

Connected Interface

EIGRP External Route
170

Which of the following routing protocols uses related link cost as the metric?
OSPF

Your company has decided to temporarily partner with a third party organization for an upcoming project. This requires your company's network and the third-party's network to be connected via dedicated WAN connection. As you prepare for the connection, you encounter a problem. The two networks need to be able to exchange routing information, but they use different routing protocols. The third-party organization use RIP, and your network uses OSPF.
Configure a border router to use route redistribution

One method of preventing routing loops is to not send information about a route back to the router from which the information came. What is this technique called?
Split horizon

Click View Lab and use tracert command from the IT administrator workstation (named ITAdmin) to answer the following question. Below are the IP addresses of the hops in the path between ITAdmin and the external DNS server on the Internet which has an IP address of 163.128.80.93. Drag the IP address listed on the left, to the hops to the right.
Hop 1: Default gateway for ITAdmin - 192.186.0.5
Hop 2: CorpNet Main Router - 198.28.56.1
Hop 3: Network Security Appliance - 65.86.24.136
Hop 4: ISP Internet Router - 65.86.1.1
Destination: External DNS Server - 163.128.80.93

Click the View Lab button and use the tracert command to identify the devices in the path between the IT Admin workstation and a remote computer on the Internet which has an IP address of 216.48.8.6.
How many routers are in the path between ITAdmin and the remote computer? 6
What is the default gateway address for ITAdmin?192.168.0.5
What is the IP address of the lat router int he path between ITAdmin and the remote computer? 73.44.216.14

You have configured a remote access server to accept dial-up connections for remote access clients. Remote clients are able to connect successfully and access resources on the remote access server. However, the remote clients are not able to connect to other devices located on the same subnet where the remote access server is located. What action would likely correct the problem?
Enable proxy arp on the LAN connection for the remote access server

You are the network administrator of a branch office of your company. The branch office network is part of a WAN that covers most of the United States. The office has two Windows 2000 servers, two UNIX severs, one Windows NT server, 90 Windows 98 clients, 40 Windows 2000 Professional clients, and five Macintosh clients.
Users have been complaining that they are unable to access resources over the WAN at the main headquarters. You suspect that one of the routers between your office and the main headquarters is not working properly.
What TCP/IP utility can you use to see if a router is not working properly?
tracert

Which TCP/IP utility gives you the following output?
2 14 ms <10 ms 14 ms Loopback0.GWI.SLT1.ALTER.NET [137.39.2.123] 3 14 ms <10 ms 13 ms 122.at-6-0-0.XR1.SLT4.ALTER.NET [152.63.91.86] 4 <10 ms 14 ms <10 ms 0.so-0-1-0.TL1.SLT4.ALTER.NET [152.63.1.210] 5 41 ms 41 ms 41 ms 0.so-7-0-0.TL1.PQR3.ALTER.NET [152.63.32.41] 6 42 ms 41 ms 41 ms 0.so.6-0-0.XL1.SEA1.ALTER.NET [152.63.38.82] 7 41 ms 41 ms 41 ms PQS6-0.GW11.SEA1.ALTER.NET [152.63.107.17]
tracert

While troubleshooting a problem on a Linux system, you run a utility that generates the following output:
5 s3232.gw.Seat,someisp.net (63.201.72.9) ms 38.713 ms 39.085 ms
traceroute

Which of the following utilities would you use to view the routing table?
route

Which of the following commands would display the output shown here?
Route Table
Interface List
Active Routes: Network destination, netmask, gateway, interface, metric
Route Print

You have just connected a new computer to your network. The network uses static IP addressing. You find that the computer can communicate with hosts on the same subnet, but not with hosts on a different subnet. No other computers are having a problem. Which of the configuration values would you most likely need to change?
Default Gateway

You manage a network with multiple subnets connected to the Internet.
A user reports that she can't access the new server used in the accounting department. You check the problem and find out that her computer cannot access any server on the subnet, however the computer does access other computers on other subnets as well as the Internet.
Which of the following is most likely the cause of the problem?
Missing route on the default gateway router.

You manage a network of multiple subnets connected to the Internet.
A user reports that she can't access the Internet. You investigate the problem and find that she can access all hosts on the private network, but no hosts on the Internet.
Which of the following is likely the cause of the problem?
Missing default route on a router

You have been recently hired to manage a network for a small company. Prior to your arrival, the entire network was migrated from IPv4 to IPv6. Each of the two functional groups within the organization has its own network segment that is separated from the other with a router. All network segments within the organization use a /64 prefix, including the point to point backbone segment that connects the two routers. You are concerned that Neighbor Discovery (ND) issues could occur between the two routers on the backbone segment. Which strategy could you employ to help prevent these issues from occurring?
Use a /127 prefix on the backbone segment

You work for a large, multinational organization that has an extensive global network that is interconnected using WAN links and routers. Lately, users in one location have complained that they are unable to access resources stored on a server named FS23 in an South American branch office. To troubleshoot the issue, you have done the following:
- Verified that the server is up and running
- Verified that the various routers in between the two locations are up and running
You suspect that perhaps one of the routers between the two locations may be dropping packets. To test this theory, you enter ping FS23 -f -l -1500 command on your workstation. The ping command returns the following: "Packet needs to be fragmented but DF set"
What does this mean?
One of the intermediate routers is an MTU black hole

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