100-101 Exam Questions - Real & Updated Questions PDF
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NEW QUESTION # 21
Scenario
Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links.
You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.
An OSPF neighbor adjacency is not formed between R3 in the main office and R6 in the Branch3 office. What is causing the problem?
- A. There is a PPP authentication issue; the username is not configured on R3 and R6.
- B. There is an area ID mismatch.
- C. The R3 router ID is configured on R6.
- D. There is an OSPF hello and dead interval mismatch.
Answer: C
Explanation:
Using the show running-config command we see that R6 has been incorrectly configured with the same router ID as R3 under the router OSPF process.
Topic 9, Simulation
NEW QUESTION # 22
Which transport layer protocol provides best-effort delivery service with no acknowledgment receipt required?
- A. UDP
- B. Telnet
- C. HTTP
- D. IP
- E. TCP
Answer: A
Explanation:
UDP provides a connectionless datagram service that offers best-effort delivery, which means that UDP does not guarantee delivery or verify sequencing for any datagrams. A source host that needs reliable communication must use either TCP or a program that provides its own sequencing and acknowledgment services.
NEW QUESTION # 23
Refer to the exhibit.
The MAC address table is shown in its entirety. The Ethernet frame that is shown arrives at the switch.
What two operations will the switch perform when it receives this frame? (Choose two.)
- A. The switch will not forward a frame with this destination MAC address.
- B. The frame will be forwarded out all the ports on the switch.
- C. The frame will be forwarded out fa0/0 and fa0/1 only.
- D. The frame will be forwarded out all active switch ports except for port fa0/0.
- E. The MAC address of ffff.ffff.ffff will be added to the MAC address table.
- F. The MAC address of 0000.00aa.aaaa will be added to the MAC Address Table.
Answer: D,F
Explanation:
If the switch already has the MAC address in its table for the destination, it will forward the frame directly to the destination port. If it was not already in its MAC table, then they frame would have been flooded out all ports except for the port that it came from.
NEW QUESTION # 24
How does a switch differ from a hub?
- A. A switch operates at a lower, more efficient layer of the OSI model.
- B. A switch tracks MAC addresses of directly-connected devices.
- C. A switch decreases the number of collision domains.
- D. A switch decreases the number of broadcast domains.
- E. A switch does not induce any latency into the frame transfer time.
Answer: B
Explanation:
Some of the features and functions of a switch include:
A switch is essentially a fast, multi-port bridge, which can contain dozens of ports.
Rather than creating two collision domains, each port creates its own collision domain.
In a network of twenty nodes, twenty collision domains exist if each node is plugged into its own
switch port.
If an uplink port is included, one switch creates twenty-one single-node collision domains.
A switch dynamically builds and maintains a Content-Addressable Memory (CAM) table, holding
all of the necessary MAC information for each port.
For a detailed description of how switches operate, and their key differences to hubs, see the
reference link below.
Reference: http://www.cisco.com/warp/public/473/lan-switch-cisco.shtml
NEW QUESTION # 25
DRAG DROP
Answer:
Explanation:
Explanation:
NEW QUESTION # 26
A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?
- A. the RIPv2 route
- B. the EIGRP route
- C. all three routes
- D. the OSPF route
- E. the OSPF and RIPv2 routes
Answer: B
Explanation:
Explanation/Reference:
When one route is advertised by more than one routing protocol, the router will choose to
use the routing protocol which has lowest Administrative Distance. The Administrative
Distances of popular routing protocols are listed below:
NEW QUESTION # 27
Refer to the output of the corporate router routing table shown in the graphic.
The corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3.
What will the router do with this packet?
- A. It will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0.
- B. It will encapsulate the packet as Frame Relay and forward it out interface Serial 0/0.117.
- C. It will forward the packet out interface Serial 0/1 and send an ICMP Echo Reply message out interface serial 0/0.102.
- D. It will change the IP packet to an ARP frame and forward it out FastEthernet 0/0.
Answer: A
NEW QUESTION # 28
Refer to the exhibit.
A person is trying to send a file from a host on Network A of the JAX Company to a server on Network Z of the XYZ Company. The file transfer fails. The host on Network A can communicate with other hosts on Network A.
Which command, issued from router RTA, would be the most useful for troubleshooting this problem?
- A. show flash:
- B. show interfaces
- C. show version
- D. show controllers serial
- E. show history
Answer: B
NEW QUESTION # 29
Which type of budget in Ads Manager lets you control how much money you spend on each ad set?
- A. Ad Set budget
- B. Campaign Budget Optimization
- C. Lifetime Budget
- D. Campaign budget
Answer: A
NEW QUESTION # 30
What are two common TCP applications? (Choose two.)
- A. TFTP
- B. FTP
- C. DNS
- D. SMTP
- E. SNMP
Answer: B,D
Explanation:
SMTP uses TCP port 25, while FTP uses TCP ports 20 and 21. http://pentestlab.wordpress.com/2012/03/05/common-tcpip-ports/
NEW QUESTION # 31
Refer to the exhibit.
A user cannot reach any web sites on the Internet, but others in the department are not having a problem.
What is the most likely cause of the problem?
- A. NAT has not been configured on the router that connects to the Internet.
- B. IP routing is not enabled.
- C. A DHCP server address is not reachable by the PC.
- D. The default gateway is not in the same subnet.
- E. A DNS server address is not reachable by the P
Answer: E
NEW QUESTION # 32
A business wants to reply privately to a customer's message.
Which two solutions can the business use? (Choose 2)
- A. Audience Network
- B. Business Suite
- C. Ads Manager
- D. Facebook Page Inbox
Answer: C,D
NEW QUESTION # 33
Refer to the exhibit.
The host in Kiev sends a request for an HTML document to the server in Minsk. What will be the source IP address of the packet as it leaves the Kiev router?
- A. 10.1.0.6
- B. 10.1.2.8
- C. 10.1.0.14
- D. 10.1.1.16
- E. 10.1.0.5
- F. 10.1.0.1
Answer: D
Explanation:
Although the source and destination MAC address will change as a packet traverses a network, the source and destination IP address will not unless network address translation (NAT) is being done, which is not the case here.
NEW QUESTION # 34
Refer to the exhibit.
The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.)
- A. Reseat all cables.
- B. Reboot all of the devices.
- C. Ensure cable A is plugged into a trunk port.
- D. Ensure that cables A and B are straight-through cables.
- E. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
- F. Ensure the switch has power.
Answer: A,D,F
NEW QUESTION # 35 
Select three options which are security issues with the current configuration of SwitchA. (Choose three.)
- A. telnet connections can be used to remotely manage the switch
- B. privilege mode is protected with an unencrypted password
- C. inappropriate wording in banner message
- D. virtual terminal lines are protected only by a password requirement
- E. cisco user will be granted privilege level 15 by default
- F. both the username and password are weak
Answer: B,C,F
Explanation:
(this answer can be done by simulation only, don't know user name password and banner message etc)
NEW QUESTION # 36
Refer to the exhibit.
Which two statements are correct? (Choose two.)
- A. This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address.
- B. This is a default route.
- C. Adding the subnet mask is optional for the ip route command.
- D. This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA.
- E. The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.
Answer: B,D
Explanation:
Explanation/Reference:
This is obviously the default value for the route which is set between the routers and since
it is entered in such a manner that it ensures connectivity between the stub network and
any host lying beyond RouterA.
NEW QUESTION # 37
Refer to the exhibit.
A network administrator has configured a Catalyst 2950 switch for remote management by pasting into the console the configuration commands that are shown in the exhibit. However, a Telnet session cannot be successfully established from a remote host. What should be done to fix this problem?
- A. Change the sixth line to line con 0.
- B. Change the fifth line to ip default-gateway 192.168.17.241.
- C. Change the first line to interface fastethernet 0/1.
- D. Change the first line to interface vlan 0/1.
- E. Change the fifth line to ip route 0.0.0.0 0.0.0.0 192.168.17.1.
Answer: B
Explanation:
The default gateway for remote session is 192.168.17.241 and not the one given in the exhibit.
NEW QUESTION # 38
Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
- A. Bandwidth, MTU, Reliability, Delay, and Load
- B. Bandwidth, Delay, and MTU
- C. Bandwidth and Delay
- D. Bandwidth
Answer: D
Explanation:
Explanation/Reference: The well-known formula to calculate OSPF cost is Cost = 108/ Bandwidth
NEW QUESTION # 39
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