[2021-New] Cisco 200-105 Dumps With Update Exam Questions (21-30)

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Q1. - (Topic 3)

Refer to the exhibit.

What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?

A. The Serial0/0 interface is passing traffic.

B. The DLCI 100 was dynamically allocated by the router

C. The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server

D. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud

E. The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP

Answer: E

Explanation:

The term dynamic indicates that the DLCI number and the remote router IP address

172.16.3.1 are learned via the Inverse ARP process.

Inverse ARP is a technique by which dynamic mappings are constructed in a network, allowing a device such as a router to locate the logical network address and associate it with a permanent virtual circuit (PVC).

Q2. - (Topic 2)

Which two statements about the OSPF Router ID are true? (Choose two.)

A. It identifies the source of a Type 1 LSA.

B. It should be the same on all routers in an OSPF routing instance.

C. By default, the lowest IP address on the router becomes the OSPF Router ID.

D. The router automatically chooses the IP address of a loopback as the OSPF Router ID.

E. It is created using the MAC Address of the loopback interface.

Answer: A,D

Explanation:

From the output of the “show ip ospf database”: r120#show ip ospf data

OSPF Router with ID (10.0.0.120) (Process ID 1)

Next, who are the other routers in our area? Router Link States (Area 1) Link ID.ADV Router.Age.Seq#.Checksum Link count

10.0.0.111.10.0.0.111.600.0x8000023A 0x0092B3 1

10.0.0.112.10.0.0.112.1246.0x80000234 0x009CAC 1

10.0.0.113.10.0.0.113.148.0x8000022C 0x004399 3

10.0.0.120.10.0.0.120.152.0x80000240 0x0046CB 1 This tells us there are four routers in Area 1. The router with RID 10.0.0.113 has 3 links in Area 1, every one else has only 1 link. Also the router will chose the highest loopback interface as its OSPF router ID (if available).

Q3. - (Topic 1)

Refer to the exhibit

Which switch provides the spanning-tree designated port role for the network segment that services the printers?

A. Switch1

B. Switch2

C. Switch3

D. Switch4

Answer: C

Explanation:

First, the question asks what switch services the printers, so it can be Switch 3 or Switch 4

which is connected directly to the Printers.

Designated port is a port that is in the forwarding state. All ports of the root bridge are

designated ports.

Switch 3 and Switch 4 has same priority so it will see on lowest MAC address and here

switch 3 has lowest MAC address. So switch 3 segment will play a Designated port role.

By comparing the MAC address of Switch 3 and Switch 4 we found that the MAC of Switch

3 is smaller. Therefore the interface connected to the Printers of Switch 3 will become

designated interface and the interface of Switch 4 will be blocked.

Q4. - (Topic 1)

Which protocol provides a method of sharing VLAN configuration information between two Cisco switches?

A. STP

B. VTP

C. 802.1Q

D. RSTP

Answer: B

Explanation:

Understanding VLAN Trunk Protocol (VTP) http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52. shtml

Introduction VLAN Trunk Protocol (VTP) reduces administration in a switched network. When you configure a new VLAN on one VTP server, the VLAN is distributed through all switches in the domain. This reduces the need to configure the same VLAN everywhere. VTP is a Cisco-proprietary protocol that is available on most of the Cisco Catalyst series products.

Q5. - (Topic 2)

Refer to the exhibit.

If the router R1 returns the given output and has not had its router ID set manually, what address will EIGRP use as its router ID?

A. 192.168.1.2

B. 172.16.4.1

C. 192.168.10.2

D. 1.1.1.1

Answer: D

Explanation:

The router ID is selected according to the following rules: manual configuration highest up/up loopback highest up/up physical interface

Q6. - (Topic 3)

Refer to the exhibit.

The show interfaces serial 0/1 command was issued on the R10-1 router. Based on the output displayed which statement is correct?

A. The cable connected to the serial 0/1 interface of the R10-1 router is a DTE cable.

B. The R10-1 router can ping the router interface connected to the serial 0/1 interface.

C. The clock rate used for interface serial 0/1 of the R10-1 router is 1,544,000 bits per second.

D. The CSU used with the serial 0/1 interface of the R10-1 router has lost connection to the service provider.

E. The interface of the remote router connected to the serial 0/1 interface of the R10-1 router is using the default serial interface encapsulation.

Answer: E

Explanation:

Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for Cisco HDLC is the default encapsulation type for the serial interfaces.

Q7. - (Topic 3)

The command show frame-relay map gives the following output:

Serial 0 (up): ip 192.168.151.4 dlci 122, dynamic, broadcast, status defined, active

Which statements represent what is shown?(Choose three.)

A. 192.168.151.4 represents the IP address of the remote router

B. 192.168.151.4 represents the IP address of the local serial interface

C. DLCI 122 represents the interface of the remote serial interface

D. DLCI 122 represents the local number used to connect to the remote address

E. broadcast indicates that a dynamic routing protocol such as RIP v1 can send packets across this PVC

F. active indicates that the ARP process is working

Answer: A,D,E

Explanation:

http://www.cisco.com/en/US/docs/ios/12_2/wan/command/reference/wrffr4.html#wp102934

Q8. - (Topic 2)

Refer to the exhibit.

Host A pings interface S0/0 on router 3, what is the TTL value for that ping?

A. 253

B. 252

C. 255

D. 254

Answer: A

Explanation:

From the CCNA ICND2 Exam book: “Routers decrement the TTL by 1 every time they forward a packet; if a router decrements the TTL to 0, it throws away the packet. This prevents packets from rotating forever.” I want to make it clear that before the router forwards a packet, the TTL is still remain the same. For example in the topology above, pings to S0/1 and S0/0 of Router 2 have the same TTL.

The picture below shows TTL values for each interface of each router and for Host B.

Notice that Host A initializes ICMP packet with a TTL of 255:

Q9. - (Topic 1)

At which layer of the OSI model is RSTP used to prevent loops?

A. physical

B. data link

C. network

D. transport

Answer: B

Explanation: RSTP and STP operate on switches and are based on the exchange of Bridge Protocol Data Units (BPDUs) between switches. One of the most important fields in BPDUs is the Bridge Priority in which the MAC address is used to elect the Root Bridge , RSTP operates at Layer 2. http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cf a.shtml

Q10. - (Topic 3)

Which feature does PPP use to encapsulate multiple protocols?

A. NCP

B. LCP

C. IPCP

D. IPXP

Answer: A

Explanation:

PPP permits multiple network layer protocols to operate on the same communication link. For every network layer protocol used, a separate Network Control Protocol (NCP) is provided in order to encapsulate and negotiate options for the multiple network layer protocols. It negotiates network-layer information, e.g. network address or compression options, after the connection has been established