[2021-New] Cisco 100-105 Dumps With Update Exam Questions (111-120)

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100-105 Exam Questions - Online Test

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Q1. - (Topic 3)

Which IP address is a private address?

A. 12.0.0.1

B. 168.172.19.39

C. 172.20.14.36

D. 172.33.194.30

E. 192.169.42.34

Answer: C

Q2. - (Topic 3)

Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two)

A. It is locally significant.

B. It is globally significant.

C. It is needed to identify a unique instance of an OSPF database.

D. It is an optional parameter required only if multiple OSPF processes are running on the router.

E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

Answer: A,C

Explanation:

https://learningnetwork.cisco.com/thread/6248 They are locally significant only, and have no bearing on the structure of any OSPF packet or LSA update. So you can have a separate process-id on every single router in your network if you so desire.

Q3. - (Topic 2)

What does a host on an Ethernet network do when it is creating a frame and it does not have the destination address?

A. Drops the frame

B. Sends out a Layer 3 broadcast message

C. Sends a message to the router requesting the address

D. Sends out an ARP request with the destination IP address

Answer: D

Explanation:

In this case, it will send out an ARP request for MAC address of the destination IP (assuming it doesn't already have it in its table) and then address it to the destination's MAC address.

Q4. DRAG DROP - (Topic 4)

Move the protocol or service on the left to a situation on the right where it would be used. (Not all options are used.)

Answer:

Q5. - (Topic 1)

Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

A. Internet layer

B. transport layer

C. application layer

D. network access layer

Answer: D

Explanation:

The Internet Protocol Suite, TCP/IP, is a suite of protocols used for communication over the internet. The TCP/ IP model was created after the OSI 7 layer model for two major reasons. First, the foundation of the Internet was built using the TCP/IP suite and through the spread of the World Wide Web and Internet, TCP/IP has been preferred. Second, a project researched by the Department of Defense (DOD) consisted of creating the TCP/IP protocols. The DOD's goal was to bring international standards which could not be met by the OSI model. Since the DOD was the largest software consumer and they preferred the TCP/IP suite, most vendors used this model rather than the OSI. Below is a side by side comparison of the TCP/IP and OSI models.

Q6. - (Topic 2)

Refer to the exhibit.

The ports that are shown are the only active ports on the switch. 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 MAC address of 0000.00aa.aaaa will be added to the MAC address table.

B. The MAC address of 0000.00dd.dddd will be added to the MAC address table.

C. The frame will be forwarded out of port fa0/3 only.

D. The frame will be forwarded out of fa0/1, fa0/2, and fa0/3.

E. The frame will be forwarded out of all the active ports.

Answer: A,D

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. It will also add the MAC address of the source device to its MAC address table

Q7. - (Topic 5)

Refer to the exhibit.

The network administrator made the entries that are shown and then saved the configuration. From a console connection, what password or password sequence is required for the administrator to access privileged mode on Router1?

A. cisco

B. sanfran

C. sanjose

D. either cisco or sanfran

E. either cisco or sanjose

F. sanjose and sanfran

Answer: B

Explanation:

The enable secret password takes precedence over the enable password, so sanfran will be used.

Q8. - (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

Q9. - (Topic 5)

Including the address on the Routed Ethernet interface, how many hosts can have IP addresses on the LAN to which Routed is connected?

A. 6

B. 30

C. 62

D. 126

Answer: A

Explanation:

This is a /29 address, so there are 6 usable IP’s on this subnet.

Q10. - (Topic 3)

Which option is a valid IPv6 address?

A. 2001:0000:130F::099a::12a

B. 2002:7654:A1AD:61:81AF:CCC1

C. FEC0:ABCD:WXYZ:0067::2A4

D. 2004:1:25A4:886F::1

Answer: D

Explanation:

IPv6 Address Notation IPv6 addresses are denoted by eight groups of hexadecimal quartets separated by colons in between them. Following is an example of a valid IPv6 address: 2001:cdba:0000:0000:0000:0000:3257:9652 Any four-digit group of zeroes within an IPv6 address may be reduced to a single zero or altogether omitted. Therefore, the following IPv6 addresses are similar and equally valid: 2001:cdba:0000:0000:0000:0000:3257:9652 2001:cdba:0:0:0:0:3257:9652 2001:cdba::3257:9652

Reference: http://www.ipv6.com/articles/general/IPv6-Addressing.htm