2022 Realistic 100-101 Dumps Exam Tips Test Pdf Exam Material
Powerful 100-101 PDF Dumps for 100-101 Questions
Facebook 100-101 Exam Syllabus Topics:
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NEW QUESTION 41
Which two of these functions do routers perform on packets? (Choose two.)
- A. Update the Layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations
- B. Update the Layer 2 headers of outbound packets with the MAC addresses of the next hops
- C. Update the Layer 3 headers of outbound packets so that the packets are properly directed to valid next hops
- D. Examine the Layer 3 headers of inbound packets and use that information to determine the complete paths along which the packets will be routed to their ultimate destinations
- E. Examine the Layer 2 headers of inbound packets and use that information to determine the next hops for the packets
- F. Examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets
Answer: B,F
Explanation:
Explanation/Reference:
This is the basic function of the router to receive incoming packets and then forward them
to their required destination. This is done by reading layer 3 headers of inbound packets
and update the info to layer 2 for further hopping.
NEW QUESTION 42
If an Ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is the maximum number of hosts allowed on this subnet?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: B
Explanation:
Explanation/Reference: Each octet represents eight bits. The bits, in turn, represent (from left to right): 128, 64, 32 , 16 , 8, 4, 2, 1 Add them up and you get 255. Add one for the all zeros option, and the total is 256. Now take away one of these for the network address (all zeros) and another for the broadcast address (all ones). Each octet represents 254 possible hosts. Or 254 possible networks. Unless you have subnet zero set on your network gear, in which case you could conceivably have 255. The CIDR addressing format (/20) tells us that 20 bits are used for the network portion, so the maximum number of networks are 2^20 minus one if you have subnet zero enabled, or
minus 2 if not.
You asked about the number of hosts. That will be 32 minus the number of network bits,
minus two. So calculate it as (2^(32-20))-2, or (2^12)-2 = 4094
NEW QUESTION 43
Refer to the graphic.
R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for
this problem? (Choose two.)
- A. R1 and R3 are configured in different areas.
- 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. All of the routers need to be configured for backbone Area 1.
- F. EIGRP is also configured on these routers with a lower administrative distance.
Answer: A,D
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);
NEW QUESTION 44
What OSPF command, when configured, will include all interfaces into area 0?
- A. network 0.0.0.0 0.0.0.0 area 0
- B. network 0.0.0.0 255.255.255.255 area 0
- C. network 255.255.255.255 0.0.0.0 area 0
- D. network all-interfaces area 0
Answer: B
NEW QUESTION 45
If a host experiences intermittent issues that relate to congestion within a network while remaining
connected, what could cause congestion on this LAN?
- A. broadcast storms
- B. network segmentation
- C. multicasting
- D. half-duplex operation
Answer: A
Explanation:
A broadcast storm can consume sufficient network resources so as to render the network unable to transport normal traffic.
NEW QUESTION 46
Refer to the exhibit.
A network device needs to be installed in the place of the icon labeled Network Device to accommodate a leased line attachment to the Internet. Which network device and interface configuration meets the minimum requirements for this installation?
- A. a switch with two Ethernet interfaces
- B. a router with one Ethernet and one serial interface
- C. a switch with one Ethernet and one serial interface
- D. a router with two Ethernet interfaces
- E. a router with one Ethernet and one modem interface
Answer: B
Explanation:
Only a router can terminate a leased line attachment access circuit, and only a router can connect two different IP networks. Here, we will need a router with two interfaces, one serial connection for the line attachment and one Ethernet interface to connect to the switch on the LAN.
NEW QUESTION 47
Which of the following statements are TRUE regarding Cisco access lists? (Choose two.)
- A. In an inbound access list, packets are filtered as they enter an interface.
- B. Extended access lists are used to filter protocol-specific packets.
- C. In an inbound access list, packets are filtered before they exit an interface.
- D. You must specify a deny statement at the end of each access list to filter unwanted traffic.
- E. When a line is added to an existing access list, it is inserted at the beginning of the access list.
Answer: A,B
Explanation:
Explanation/Reference: In an inbound access list, packets are filtered as they enter an interface. Extended access lists are used to filter protocol specific packets. Access lists can be used in a variety of situations when the router needs to be given guidelines for decision-making. These situations include: Filtering traffic as it passes through the router To control access to the VTY lines (Telnet) To identify "interesting" traffic to invoke Demand Dial Routing (DDR) calls To filter and control routing updates from one router to another There are two types of access lists, standard and extended. Standard access lists are applied as close to the destination as possible (outbound), and can only base their filtering criteria on the source IP address. The number used while creating an access list specifies the type of access list created. The range used for standard access lists is 1 to 99 and 1300 to 1999. Extended access lists are applied as close to the source as possible (inbound), and can base their filtering criteria on the source or destination IP address, or on the specific protocol being used. The range used for extended access lists is 100 to 199 and 2000 to 2699. Other features of access lists include: Inbound access lists are processed before the packet is routed. Outbound access lists are processed after the packet has been routed to an exit interface. An "implicit deny" is at the bottom of every access list, which means that if a packet has not matched any preceding access list condition, it will be filtered (dropped). Access lists require at least one permit statement, or all packets will be filtered (dropped). One access list may be configured per direction for each Layer 3 protocol configured on an interface The option stating that in an inbound access list, packets are filtered before they exit an interface is incorrect.
Packets are filtered as they exit an interface when using an outbound access list. The option stating that a deny statement must be specified at the end of each access list in order to filter unwanted traffic is incorrect. There is an implicit deny at the bottom of every access list. When a line is added to an existing access list, it is not inserted at the beginning of the access list. It is inserted at the end. This should be taken into consideration. For example, given the following access list, executing the command access-list 110 deny tcp
192.168.5.0 0.0.0.255 any eq www would have NO effect on the packets being filtered because it would be inserted at the end of the list, AFTER the line that allows all traffic.
access-list 110 permit ip host 192.168.5.1 any access-list 110 deny icmp 192.168.5.0 0.0.0.255 any echo access-list 110 permit any any
Topic 6, Network Device Security
NEW QUESTION 48
Which layer of the TCP/IP stack combines the OSI model physical and data link layers?
- A. network access layer
- B. transport layer
- C. Internet layer
- D. application layer
Answer: A
Explanation:
Explanation/Reference: 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 then the OSI. Below is a side by side comparison of the TCP/IP and OSI models.
NEW QUESTION 49
A sporting goods brand needs to create a Custom Audience based on website visitors to retarget in a future campaign. The brand needs a large enough target audience to retarget effectively.
Which objective should the brand use for their current campaign?
- A. Traffic
- B. Conversions
- C. Leads
- D. Engagement
Answer: A
NEW QUESTION 50
Refer to the exhibit.
All devices attached to the network are shown. How many collision domains are present in this network?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: C
Explanation:
A switch uses a separate collision domain for each port so there are a total of 9 for each device shown. In addition to this, the switch to switch connections (3) are a separate collision domain. Finally, we add the switch to router connections (2) and the router to router connection (1) for a total of 15.
NEW QUESTION 51
Refer to the exhibit.
A network administrator is troubleshooting a connectivity problem on the serial interfaces. The output from the show interfaces command on both routers shows that the serial interface is up, line protocol is down. Given the partial output for the show running-config in the exhibit, what is the most likely cause of this problem?
- A. The MTU is incorrectly configured.
- B. The serial cable is bad.
- C. The IP addresses are not in the same subnet.
- D. The Layer 2 framing is misconfigured.
Answer: D
NEW QUESTION 52
Refer to the exhibit.
HostX is transferring a file to the FTP server. Point A represents the frame as it goes toward the Toronto router. What will the Layer 2 destination address be at this point?
- A. abcd.2246.0035
- B. 192.168.1.1
- C. aabb.5555.2222
- D. 192.168.7.17
- E. abcd.1123.0045
Answer: A
Explanation:
For packets destined to a host on another IP network, the destination MAC address will be the LAN interface of the router. Since the FTP server lies on a different network, the host will know to send the frame to its default gateway, which is Toronto.
NEW QUESTION 53
CORRECT TEXT
The hosts in the LAN are not able to connect to the Internet. Which commands will correct this issue?
- A. Option C
- B. Option B
- C. Option A
- D. Option E
- E. Option D
Answer: B
Explanation:
Do a "show ip int brief" and you will see that Fa0/1 has an IP address assigned, but it is shut down.
NEW QUESTION 54
DRAG DROP
Answer:
Explanation:
NEW QUESTION 55
Which statements are true regarding ICMP packets? (Choose two.)
- A. They guarantee datagram delivery.
- B. They are encapsulated within UDP datagrams.
- C. TRACERT uses ICMP packets.
- D. They acknowledge receipt of TCP segments.
- E. They are encapsulated within IP datagrams.
Answer: C,E
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
NEW QUESTION 56
Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.)
- A. Leading zeros cannot be omitted in an IPv6 address.
- B. Groups with a value of 0 can be represented with a single 0 in IPv6 address.
- C. An IPv6 address is divided into eight 16-bit groups.
- D. A double colon (::) can only be used once in a single IPv6 address.
- E. IPv6 addresses are 196 bits in length.
Answer: B,C,D
Explanation:
Explanation/Reference:
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.
NEW QUESTION 57
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?
- 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.
Answer: B
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. In this case, the MAC address shown is already in the table so it will be forwarded directly.
NEW QUESTION 58
How should an advertiser describe Meta Conversion API to a customer?
- A. A piece of code for a website that allows measuring, optimizing and building audiences for ad campaigns
- B. A way to track app login and events by integrating SDK to the mobile app
- C. A direct connection to an advertiser's server to optimize ad targeting decrease CPA and measure results
- D. A series of standard and custom events tracked through a base code installed on an advertiser's website
Answer: D
NEW QUESTION 59
What is a valid reason that an ad would be rejected by Facebook?
- A. The ad used a video ad that was originally created for television
- B. An image within the ad focused on individual body parts
- C. Lead ads were used to receive email, first name and phone number
- D. The link to the landing pages included content that was relevant to the ad
Answer: B
NEW QUESTION 60
Refer to the exhibit.
Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?
- A. 10.154.154.1
- B. 172.16.5.1
- C. 10.1.1.2
- D. 192.168.5.3
Answer: B
Explanation:
The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.
NEW QUESTION 61
How many currencies are allowed in an ad account?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 62
An administrator is in the process of changing the configuration of a router. What command will allow the administrator to check the changes that have been made prior to saving the new configuration?
- A. Router# show startup-config
- B. Router# show flash
- C. Router# show memory
- D. Router# show processes
- E. Router# show running-config
- F. Router# show current-config
Answer: E
Explanation:
This command followed by the appropriate parameter will show the running config hence the admin will be able to see what changes have been made, and then they can be saved.
NEW QUESTION 63
Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three.)
- A. 10.1.160.0
- B. 10.1.168.0
- C. 10.1.176.1
- D. 10.1.160.255
- E. 10.1.174.255
- F. 10.1.175.255
Answer: B,D,E
Explanation:
Explanation
All IP address in IP ranges between : 10.1.160.1 and 10.1.175.254 are valid as shown below Address: 10.1.160.0 00001010.00000001.1010 0000.00000000 Netmask:255.255.240.0 = 2011111111.11111111.1111 0000.00000000 Wildcard:0.0.15.25500000000.00000000.0000 1111.11111111 Which implies that Network: 10.1.160.0/20 00001010.00000001.1010 0000.00000000 HostMin:10.1.160.100001010.00000001.1010 0000.00000001 HostMax:10.1.175.25400001010.00000001.1010 1111.11111110 Broadcast:10.1.175.25500001010.00000001.1010 1111.11111111
NEW QUESTION 64
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