[2021-New] Cisco 100-105 Dumps With Update Exam Questions (31-40)

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Q1. - (Topic 5)

Refer to the exhibit.

A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?

A. Host B would not be able to access the server in VLAN9 until the cable is reconnected.

B. Communication between VLAN3 and the other VLANs would be disabled.

C. The transfer of files from Host B to the server in VLAN9 would be significantly slower.

D. For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network function would resume.

Answer: D

Explanation:

Because Switch1 has multiple redundant links in this network, traffic would not work for less than a minute, and then it would get rerouted along the longer path to the host. The 1 minute outage would be the length of time it takes STP to converge.

Q2. - (Topic 4)

The network administrator is using a Windows PC application that is called putty.exe for remote communication to a switch for network troubleshooting. Which two protocols could be used during this communication? (Choose two.)

A. SNMP

B. HTTP

C. Telnet

D. RMON

E. SSH

Answer: C,E

Explanation:

PuTTY is a free implementation of Telnet and SSH for Windows and Unix platforms, and is used to connect to Cisco and other networking devices using SSH or Telnet.

Topic 5, Infrastructure Maintenance

Q3. - (Topic 5)

Which two of the following are true regarding the configuration of RouterA? (Choose two.)

A. At least 5 simultaneous remote connections are possible

B. Only telnet protocol connections to RouterA are supported C. Remote connections to RouterA using telnet will succeed

D. Console line connections will nevertime out due to inactivity

E. Since DHCP is not used on Fa0/1 there is not a need to use the NAT protocol

Answer: A,C

Q4. - (Topic 5)

Refer to the exhibit.

An administrator cannot connect from R1 to R2. To troubleshoot this problem, the administrator has entered the command shown in the exhibit. Based on the output shown, what could be the problem?

A. The serial interface is configured for half duplex.

B. The serial interface does not have a cable attached.

C. The serial interface has the wrong type of cable attached.

D. The serial interface is configured for the wrong frame size.

E. The serial interface has a full buffer.

Answer: C

Explanation:

http://www.thebryantadvantage.com/CCNACertificationExamTutorialDirectlyConnectedSeri

alInterfaces.htm

Since the output is not forthcoming it shows that the type of cable attached is wrong,

though the cable is connected since it shows the cable type.

According to the figure DTE cable should connect to R1 on interface but while examining

using show controllers serial 0/0 command it showing that a DCE is connected so the

wrong type of cable is being used.

Q5. - (Topic 7)

Configuration of which option is required on a Cisco switch for the Cisco IP phone to work?

A. PortFast on the interface

B. the interface as an access port to allow the voice VLAN ID

C. a voice VLAN ID in interface and global configuration mode

D. Cisco Discovery Protocol in global configuration mode

Answer: B

Explanation:

Configure the Switch Port to Carry Both Voice and Data TrafficWhen you connect an IP phone to a switch using a trunk link, it can cause high CPU utilization in the switches. As all the VLANs for a particular interface are trunked to the phone, it increases the number of STP instances the switch has to manage. This increases the CPU utilization. Trunking also causes unnecessary broadcast / multicast / unknown unicast traffic to hit the phone link. In order to avoid this, remove the trunk configuration and keep the voice and access VLAN configured along with Quality of Service (QoS). Technically, it is still a trunk, but it is called a Multi-VLAN Access Port (MVAP). Because voice and data traffic can travel through the same port, you should specify a different VLAN for each type of traffic. You can configure a switch port to forward voice and data traffic on different VLANs. Configure IP phone ports with a voice VLAN configuration. This configuration creates a pseudo trunk, but does not require you to manually prune the unnecessary VLANs. The voice VLAN feature enables access ports to carry IP voice traffic from an IP phone. The voice VLAN feature is disabled by default. The Port Fast feature is automatically enabled when voice VLAN is configured. When you disable voice VLAN, the Port Fast feature is not automatically disabled.

Q6. - (Topic 7)

Which route source code represents the routing protocol with a default administrative distance of 90 in the routing table?

A. S

B. E

C. D

D. R

E. O

Answer: C

Explanation:

SStatic EEGP DEIGRP RRIP OOSPF

Default Administrative distance of EIGRP protocol is 90 then answer is C

Default Distance Value TableThis table lists the administrative distance default values of the protocols that Cisco supports:

Route Source Default Distance Values

Connected interface 0 Static route 1 Enhanced Interior Gateway Routing Protocol (EIGRP) summary route 5 External Border Gateway Protocol (BGP) 20 Internal EIGRP 90 IGRP 100 OSPF 110 Intermediate System-to-Intermediate System (IS-IS) 115 Routing Information Protocol (RIP) 120 Exterior Gateway Protocol (EGP) 140 On Demand Routing (ODR) 160 External EIGRP 170 Internal BGP 200 Unknown* 255

Q7. - (Topic 3)

Refer to the exhibit.

If the router Cisco returns the given output and has not had its router ID set manually, what value will OSPF use as its router ID?

A. 192.168.1.1

B. 172.16.1.1

C. 1.1.1.1

D. 2.2.2.2

Answer: D

Explanation:

If a router-id is not configured manually in the OSPF routing process the router will automatically configure a router-id determined from the highest IP address of a logical interface (loopback interface) or the highest IP address of an active interface. If more than one loopback interfaces are configured, the router will compare the IP addresses of each of the interfaces and choose the highest IP address from the loopbacks.

Q8. - (Topic 3)

Which address are OSPF hello packets addressed to on point-to-point networks?

A. 224.0.0.5

B. 172.16.0.1

C. 192.168.0.5

D. 223.0.0.1

E. 254.255.255.255

Answer: A

Explanation:

Why does the show ip ospf neighbor Command Reveal Neighbors in the Init State? http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f11.shtml OSPF hello packets have a destination address of 224.0.0.5 (the all ospf routers multicast

address).

Q9. - (Topic 3)

Refer to the exhibit.

PC1 pings PC2. What three things will CORE router do with the data that is received from PC1? (Choose three.)

A. The data frames will be forwarded out interface FastEthernet0/1 of CORE router.

B. The data frames will be forwarded out interface FastEthernet1/0 of CORE router.

C. CORE router will replace the destination IP address of the packets with the IP address of PC2.

D. CORE router will replace the MAC address of PC2 in the destination MAC address of the frames.

E. CORE router will put the IP address of the forwarding FastEthernet interface in the place of the source IP address in the packets.

F. CORE router will put the MAC address of the forwarding FastEthernet interface in the place of the source MAC address.

Answer: B,D,F

Explanation:

The router will forward the frames out the interface toward the destination – B is correct. Since the router will has the end station already in it’s MAC table as see by the “show arp” command, it will replace the destination MAC address to that of PC2 – D is correct. The router will then replace the source IP address to 172.16.40.1 – E is correct.

Q10. - (Topic 3)

What OSPF command, when configured, will include all interfaces into area 0?

A. network 0.0.0.0 255.255.255.255 area 0

B. network 0.0.0.0 0.0.0.0 area 0

C. network 255.255.255.255 0.0.0.0 area 0

D. network all-interfaces area 0

Answer: A

Explanation:

Example 3-1 displays OSPF with a process ID of 1 and places all interfaces configured with an IP address in area 0. The network command.network 0.0.0.0 255.255.255.255 area 0.dictates that you do not care (255.255.255.255) what the IP address is, but if an IP address is enabled on any interface, place it in area 0.

Example 3-1.Configuring OSPF in a Single Area

router ospf 1 network 0.0.0.0 255.255.255.255 area 0

Reference: http://www.ciscopress.com/articles/article.asp?p=26919&seqNum=3