2019 Free Microsoft EnsurePass 100-105 Dumps VCE and PDF Download Part 1

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

 

QUESTION 1

Refer to the exhibit. If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?

 

image002

 

A.

10.168.10.99

B.

10.168.11.88

C.

A1:A1:A1:A1:A1:A1

D.

B2:B2:B2:B2:B2:B2

E.

C3:C3:C3:C3:C3:C3

F.

D4:D4:D4:D4:D4:D4

 

Correct Answer: E

Explanation:

When packets transfer from one host to another across a routed segment, the source IP address always remains the same source IP address, and the source physical (MAC) address will be the existing router’s interface address. Similarly, the destination IP address always remains the same and the destination physical (MAC) address is the destination router’s interface address.

 

 

QUESTION 2

Refer to the exhibit. What kind of cable should be used to make each connection that is identified by the numbers shown?

 

image003

 

A.

1 – Ethernet Crossover cable

2 – Ethernet straight-through cable

3 – Fiber Optic cable

4 – Rollover cable

B.

1 – Ethernet straight-through cable

2 – Ethernet straight-through cable

3 – Serial cable

4 – Rollover cable

C.

1 – Ethernet rollover cable

2 – Ethernet crossover cable

3 – Serial cable

4 – Null-modem cable

D.

1 – Ethernet straight-through cable

2 – Ethernet Crossover cable

3 – Serial cable

4 – Rollover cable

E.

1 – Ethernet straight-through cable

2 – Ethernet Crossover cable

3 – Serial cable

4 – Ethernet Straight-through cable

 

Correct Answer: B

Explanation:

When connecting a PC to a switch, a standard Ethernet straight through cable should be used. This same cable should also be used for switch to router connections. Generally speaking, crossover cables are only needed when connecting two like devices (PC-PC, switch-switch, router-router, etc).

Routers connect to frame relay and other WAN networks using serial cables. Rollover cables are special cables used for connecting to the console ports of Cisco devices.

 

 

QUESTION 3

Refer to the exhibit. What must be configured to establish a successful connection from Host A to switch SW-A through router RT-A?

 

image004

 

A.

VLAN 1 on RT-A

B.

IP routing on SW-A

C.

default gateway on SW-A

D.

crossover cable connecting SW-A and RT-A

 

Correct Answer: C

Explanation:

In order for the switch to reach networks that are not local, such as networks attached to different interfaces of the router, it will need to set its default gateway to be the IP address of the attached router.

 

 

 

QUESTION 4

Refer to the exhibit. SwitchA receives the frame with the addressing shown in the exhibit. According to the command output also shown in the exhibit, how will SwitchA handle this frame?

 

image005

 

A.

It will drop the frame.

B.

It will forward the frame out port Fa0/6 only.

C.

It will forward the frame out port Fa0/3 only.

D.

It will flood the frame out all ports.

E.

It will flood the frame out all ports except Fa0/3.

 

Correct Answer: E

Explanation:

When frame receives the frame, it checks the source address on MAC table if MAC address found in MAC table it tries to forward if not in MAC table adds the Address on MAC table. After checking the source address, it checks the destination address on MAC table, if MAC address found on MAC table it forwards to proper ports otherwise floods on all ports except the source port.

 

 

QUESTION 5

Refer to the topology and switching table shown in the graphic. Host B sends a frame to Host C. What will the switch do with the frame?

 

image007

A.

Drop the frame

B.

Send the frame out all ports except port 0/2

C.

Return the frame to Host B

D.

Send an ARP request for Host C

E.

Send an ICMP Host Unreachable message to Host B

F.

Record the destination MAC address in the switching table and send the frame directly to Host C

 

Correct Answer: B

 

 

QUESTION 6

Which network device functions only at Layer 1 of the OSI model?

 

image008

 

A.

Option A

B.

Option B

C.

Option C

D.

Option D

E.

Option E

Correct Answer: B

Explanation:

Most hubs are amplifying the electrical signal; therefore, they are really repeaters with several ports. Hubs and repeaters are Layer 1 (physical layer) devices.

 

 

QUESTION 7

Which statements accurately describe CDP? (Choose three.)

 

A.

CDP is an IEEE standard protocol.

B.

CDP is a Cisco proprietary protocol.

C.

CDP is a datalink layer protocol.

D.

CDP is a network layer protocol.

E.

CDP can discover directly connected neighboring Cisco devices.

F.

CDP can discover Cisco devices that are not directly connected.

 

Correct Answer: BCE

Explanation:

CDP (Cisco Discovery Protocol) is a proprietary protocol designed by Cisco to help administrators collect information about both locally attached and remote devices. By using CDP, you can gather hardware and protocol information about neighbor devices containing useful info for troubleshooting and documenting the network.

 

 

QUESTION 8

At which layer of the OSI model does the protocol that provides the information that is displayed by the show cdp neighbors command operate?

 

A.

application

B.

transport

C.

network

D.

physical

E.

data link

 

Correct Answer: E

Explanation:

CDP is a device discovery protocol that runs over Layer 2 (the data link layer) on all Cisco- manufactured devices (routers, bridges, access servers, and switches) and allows network management applications to discover Cisco devices that are neighbors of already known devices. With CDP, network management applications can learn the device type and the Simple Network Management Protocol (SNMP) agent address of neighboring devices running lower-layer, transparent protocols.

CDP allows devices to share basic configuration information without even configuring any protocol specific information and is enabled by default on all interfaces. CDP is a Datalink Protocol occurring at Layer 2 of the OSI model. CDP is not routable and can only go over to directly connected devices. CDP is enabled, by default, on all Cisco devices. CDP updates are generated as multicasts every 60 seconds with a hold-down period of 180 seconds for a missing neighbor. The no cdp run command globally disables CDP, while the no cdp enable command disables CDP on an interface. Use show cdp neighbors to list out your directly connected Cisco neighboring devices. Adding the detail parameter will display the layer-3 addressing configured on the neighbor.

Reference: http://computernetworkingnotes.com/cisco-devices-administration-and- configuration/cisco-discoveryprotocol.html

 

QUESTION 9

Which statements are true regarding ICMP packets? (Choose two.)

 

A.

They acknowledge receipt of TCP segments.

B.

They guarantee datagram delivery.

C.

TRACERT uses ICMP packets.

D.

They are encapsulated within IP datagrams.

E.

They are encapsulated within UDP datagrams.

 

Correct Answer: CD

Explanation:

Ping may be used to find out whether the local machines are connected to the network or whether a remote site is reachable. This tool is a common network tool for determining the network connectivity, which uses ICMP protocol instead of TCP/IP and UDP/IP. This protocol is usually associated with the network management tools, which provide network information to network administrators, such as ping and traceroute (the later also uses the UDP/IP protocol).

ICMP is quite different from the TCP/IP and UDP/IP protocols. No source and destination ports are included in its packets. Therefore, usual packet-filtering rules for TCP/IP and UDP/IP are not applicable. Fortunately, a special “signature” known as the packet’s Message type is included for denoting the purposes of the ICMP packet. Most commonly used message types are namely, 0, 3, 4, 5, 8, 11, and 12 which represent echo reply, destination unreachable, source quench, redirect, echo request, time exceeded, and parameter problem respectively.

In the ping service, after receiving the ICMP “echo request” packet from the source location, the destination

 

 

QUESTION 10

Refer to the exhibit. Host A is sending a packet to Host B for the first time. What destination MAC address will Host A use in the ARP request?

 

image009

 

A.

192.168.0.1

B.

172.16.0.50

C.

00-17-94-61-18-b0

D.

00-19-d3-2d-c3-b2

E.

ff-ff-ff-ff-ff-ff

F.

255.255.255.255

 

Correct Answer: E

Explanation:

For the initial communication, Host A will send a broadcast ARP (all F’s) to determine the correct address to use to reach the destination.

ARP sends an Ethernet frame called an ARP request to every host on the shared link-layer legmen. The Ethernet header includes the source host MAC address and a destination address of all Fs representing a broadcast frame. The ARP request contains the sender’s MAC and IP address and the target (destination) IP address. The target’s MAC address is set to all 0s.

ARP Request

Reference: http://www.technicalhowto.com/protocols/arp/arp.html


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