2019 Free Microsoft EnsurePass 100-105 Dumps VCE and PDF Download Part 11

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100-105 Dumps VCE and PDF
2019 100-105 Dumps VCE and PDF

QUESTION 101

The network manager has requested a 300-workstation expansion of the network. The workstations are to be installed in a single broadcast domain, but each workstation must have its own collision domain. The expansion is to be as cost-effective as possible while still meeting the requirements. Which three items will adequately fulfill the request? (Choose three).

 

A.

One IP subnet with a mask of 255.255.254.0

B.

Two IP subnets with a mask of 255.255.255.0

C.

Seven 48-port hubs

D.

Seven 48-port switches

E.

One router interface

F.

Seven router interfaces

 

Correct Answer: ADE

Explanation:

To support 300 workstations in a single broadcast domain, we need to use a subnet mask which supports 512 hosts = 29-> /23 or 255.255.254.0 in decimal form -> A is correct. If we use 48-port switches we need 300/48 = 6.25 -> seven 48-port switches are enough because we also need trunking between them -> D is correct. We only need one router interface and it is connected with one of seven switches -> E is correct.

 

 

QUESTION 102

Which of the following IP addresses are valid Class B host addresses if a default Class B mask is in use? (Choose two.)

 

A.

10.6.8.35

B.

133.6.5.4

C.

192.168.5.9

D.

127.0.0.1

E.

190.6.5.4

 

Correct Answer: BE

Explanation:

The IP addresses 133.6.5.4 and 190.6.5.4 are both valid Class B addresses when a default mask is in use.

The Class B default mask is 255.255.0.0 and the range of valid addresses is 128.0.0.0- 191.255.255.255.

The IP address 10.6.8.35 is a Class A address. The Class A default mask is 255.0.0.0 and the range of valid addresses is 1.0.0.0 – 127.255.255.255, with the exception of the range 127.0.0.1 – 127.255.255.255, which is reserved and cannot be assigned.

The IP address 192.168.5.9 is a Class C address. The Class C default mask is 255.255.255.0 and the range of valid addresses is 192.0.0.0 – 223.255.255.255.

The IP address 127.0.0.1 is a Class A address, but it comes from a reserved portion that cannot be assigned.

The range 127.0.0.1 – 127.255.255.255 is used for diagnostics, and although any address in the range will work as a diagnostic address, 127.0.0.1 is known as the loopback address. If you can ping this address, or any address in the 127.0.0.1 – 127.255.255.255 range, then the NIC is working and TCP/IP is installed. The Class A default mask is 255.0.0.0 and the range of valid addresses is 1.0.0.0 – 127.255.255.255, with the exception of the range 127.0.0.1 – 127.255.255.255, which is reserved and cannot be assigned.

 

image086

 

 

QUESTION 103

Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.)

 

A.

An IPv6 address is divided into eight 16-bit groups.

B.

A double colon (::) can only be used once in a single IPv6 address.

C.

IPv6 addresses are 196 bits in length.

D.

Leading zeros cannot be omitted in an IPv6 address.

E.

Groups with a value of 0 can be represented with a single 0 in IPv6 address.

 

Correct Answer: ABE

Explanation:

IPv6 addresses are divided into eight 16-bit groups, a double colon (::) can only be used once in an IPv6 address, and groups with a value of 0 can be represented with a single 0 in an IPv6 address.

The following statements are also true regarding IPv6 address:

IPv6 addresses are 128 bits in length.

Eight 16-bit groups are divided by a colon (:).

Multiple groups of 16-bit 0s can be represented with double colon (::).

Double colons (::) represent only 0s.

Leading zeros can be omitted in an IPv6 address.

The option stating that IPv6 addresses are 196 bits in length is incorrect. IPv6 addresses are 128 bits in length.

The option stating that leading zeros cannot be omitted in an IPv6 address is incorrect.

Leading zeros can be omitted in an IPv6 address.

 

 

QUESTION 104

Some routers have been configured with default routes. What are some of the advantages of using default routes? (Choose two)

 

A.

They establish routes that will never go down.

B.

They keep routing tables small.

C.

They require a great deal of CPU power.

D.

They allow connectivity to remote networks that are not in the routing table

E.

They direct traffic from the internet into corporate networks.

 

Correct Answer: BD

Explanation:

Cisco administration 101: What you need to know about default routes

Reference: http://www.techrepublic.com/article/cisco-administration-101-what-you-need-to-know-about-default-routes/

 

QUESTION 105

After the network has converged, what type of messaging, if any, occurs between R3 and R4?

 

image088

 

A.

No messages are exchanged

B.

Hellos are sent every 10 seconds.

C.

The full database from each router is sent every 30 seconds.

D.

The routing table from each router is sent every 60 seconds.

 

Correct Answer: B

Explanation:

HELLO messages are used to maintain adjacent neighbors so even when the network is converged, hellos are still exchanged. On broadcast and point-to-point links, the default is 10 seconds, on NBMA the default is 30 seconds.

Although OSPF is a link-state protocol the full database from each router is sent every 30 minutes (not seconds) therefore, C and D are not correct.

 

 

QUESTION 106

What is the default administrative distance of OSPF?

 

A.

90

B.

100

C.

110

D.

120

 

Correct Answer: C

Explanation:

Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols. Administrative distance defines the reliability of a routing protocol. Each routing protocol is prioritized in order of most to least reliable (believable) with the help of an administrative distance value.

Default Distance Value Table

This table lists the administrative distance default values of the protocols that Cisco supports:

 

image089

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTION 107

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?

 

image090

 

A.

It will encapsulate the packet as Frame Relay and forward it out interface Serial 0/0.117.

B.

It will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0.

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.

 

Correct Answer: B

Explanation:

Since the destination network is not in the routing table, and no default gateway has been configured, the router will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0. It knows to send it out Fa 0/0 because the routing table for the source IP address of 192.168.214.20 shows it was learned from the Fa 0/0 interface.

 

 

QUESTION 108

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?

 

image092

A.

192.168.1.1

B.

172.16.1.1

C.

1.1.1.1

D.

2.2.2.2

 

Correct 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.

 

 

QUESTION 109

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 OSPF route

B.

the EIGRP route

C.

the RIPv2 route

D.

all three routes

E.

the OSPF and RIPv2 routes

 

Correct Answer: B

Explanation:

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:

 

image093

 

 

 

 

 

 

 

 

 

 

 

QUESTION 110

Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two.)

 

image094

 

A.

All of the routers need to be configured for backbone Area 1.

B.

R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.

C.

A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.

D.

The hello and dead interval timers are not set to the same values on R1 and R3.

E.

EIGRP is also configured on these routers with a lower administrative distance.

F.

R1 and R3 are configured in different areas.

 

Correct Answer: DF

Explanation:

This question is to examine the conditions for OSPF to create neighborhood. So as to make the two routers become neighbors, each router must be matched with the following items:

1. The area ID and its types;

2. Hello and failure time interval timer;

3. OSPF Password (Optional);


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