Introduction to Networks (version 6.00) - ITN Chapter 11 Exam Beta Answers 2018 100%

Last Updated on January 14, 2021 by Admin

Introduction to Networks (version 6.00) – ITN Chapter 11 Exam Beta Answers 2018 100%

Cisco CCNA 1 ITN v6.0 chapter 11 exam beta answers Routing and Switching (R&S) Introduction to Networks (ITN) (Version 6.00) collection year 2017, 2018 and 2019 Full 100%. CCNA 1 has been know as ITN. The following are the questions exam answers. Guarantee Passed 100%. CCNA 1 v6.0 chapter 11 exam beta answers has some new update from ITN version 6.0 without beta. You can review all chapter 11 exam beta answers. You will get passed scored 100% with this version 6.0. Good Luck for Cisco Netacad ITN v6.0 Exam or ITN Pilot version 6.0 !

This is the first release of this form for the CCNA R&S Introduction to Networks curriculum from Cisco Netacad.com. There are 28 items are available in ITN Chapter 11 Exam Beta. You will get only selected 18 items which are displayed in random sequence, while you take exam with Cisco Netacad.

Which network design consideration would be more important to a large corporation than to a small business?

Internet router
firewall
low port density switch

redundancy

Explanation:

Small businesses today do need Internet access and use an Internet router to provide this need. A switch is required to connect the two host devices and any IP phones or network devices such as a printer or a scanner. The switch may be integrated into the router. A firewall is needed to protect the business computing assets. Redundancy is not normally found in very small companies, but slightly larger small companies might use port density redundancy or have redundant Internet providers/links.

How should traffic flow be captured in order to best understand traffic patterns in a network?

during low utilization times
during peak utilization times
when it is on the main network segment only

when it is from a subset of users

Explanation:

Capturing traffic during low utilization time will not give a good representation of the different traffic types. Because some traffic could be local to a particular segment, the capture must be done on different network segments.

A network administrator for a small company is contemplating how to scale the network over the next three years to accommodate projected growth. Which three types of information should be used to plan for network growth? (Choose three.)

human resource policies and procedures for all employees in the company
documentation of the current physical and logical topologies
analysis of the network traffic based on protocols, applications, and services used on the network
history and mission statement of the company
inventory of the devices that are currently used on the network

listing of the current employees and their role in the company

Explanation:

Several elements that are needed to scale a network include documentation of the physical and logical topology, a list of devices that are used on the network, and an analysis of the traffic on the network.

A newly hired network technician is given the task of ordering new hardware for a small business with a large growth forecast. Which primary factor should the technician be concerned with when choosing the new devices?

devices with a fixed number and type of interfaces
devices that have support for network monitoring
redundant devices

devices with support for modularity

Explanation:

In a small business with a large growth forecast, the primary influencing factor would be the ability of devices to support modularity. Devices with a fixed type/number of interfaces would not support growth. Redundancy is an important factor, but typically found in large enterprises. Network monitoring is also an important consideration, but not as important as modularity.

Which two traffic types require delay sensitive delivery? (Choose two.)
- email
- web
- FTP
- voice
- video
  
  Explanation:
  
  Voice and video traffic have delay sensitive characteristics and must be given priority over other traffic types such as web, email, and file transfer traffic.

Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)

voice
video
web
peer to peer

file transfer

Explanation:

Voice and video are delay sensitive applications and are transported using the Real-Time Transport Protocol (RTP). Web, file transfer, and peer-to-peer traffic are considered normal data traffic.

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)

Capture traffic on the weekends when most employees are off work.
Only capture traffic in the areas of the network that receive most of the traffic such as the data center.
Capture traffic during peak utilization times to get a good representation of the different traffic types.
Perform the capture on different network segments.

Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.

Explanation:

Traffic flow patterns should be gathered during peak utilization times to get a good representation of the different traffic types. The capture should also be performed on different network segments because some traffic will be local to a particular segment.

A network administrator is issuing the login block-for 180 attempts 2 within 30 command on a router. Which threat is the network administrator trying to prevent?

a user who is trying to guess a password to access the router
a worm that is attempting to access another part of the network
an unidentified individual who is trying to access the network equipment room

a device that is trying to inspect the traffic on a link

Explanation:

The login block-for 180 attempts 2 within 30 command will cause the device to block authentication after 2 unsuccessful attempts within 30 seconds for a duration of 180 seconds. A device inspecting the traffic on a link has nothing to do with the router. The router configuration cannot prevent unauthorized access to the equipment room. A worm would not attempt to access the router to propagate to another part of the network.

Which two steps are required before SSH can be enabled on a Cisco router? (Choose two.)

Give the router a host name and domain name.
Create a banner that will be displayed to users when they connect.
Generate a set of secret keys to be used for encryption and decryption.
Set up an authentication server to handle incoming connection requests.

Enable SSH on the physical interfaces where the incoming connection requests will be received.

Explanation:

There are four steps to configure SSH on a Cisco router. First, set the host name and domain name. Second, generate a set of RSA keys to be used for encrypting and decrypting the traffic. Third, create the user IDs and passwords of the users who will be connecting. Lastly, enable SSH on the vty lines on the router. SSH does not need to be set up on any physical interfaces, nor does an external authentication server need to be used. While it is a good idea to configure a banner to display legal information for connecting users, it is not required to enable SSH.

What type of attack may involve the use of tools such as nslookup and fping?

access attack
reconnaissance attack
denial of service attack

worm attack

Explanation:

For reconnaissance attacks, external attackers can use Internet tools, such as the nslookup and whois utilities, to easily determine the IP address space assigned to a given corporation or entity. After the IP address space is determined, an attacker can then ping the publicly available IP addresses to identify the addresses that are active. Fping is a ping sweep tool that can help automate this process.

Some routers and switches in a wiring closet malfunctioned after an air conditioning unit failed. What type of threat does this situation describe?

configuration
environmental
electrical

maintenance

Explanation:

The four classes of threats are as follows:

Hardware threats – physical damage to servers, routers, switches, cabling plant, and workstations
Environmental threats – temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry)
Electrical threats – voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss
Maintenance threats – poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling

Which firewall feature is used to ensure that packets coming into a network are legitimate responses initiated from internal hosts?

application filtering
stateful packet inspection
URL filtering

packet filtering

Explanation:

Stateful packet inspection on a firewall checks that incoming packets are actually legitimate responses to requests originating from hosts inside the network. Packet filtering can be used to permit or deny access to resources based on IP or MAC address. Application filtering can permit or deny access based on port number. URL filtering is used to permit or deny access based on URL or on keywords.

Which two actions can be taken to prevent a successful network attack on an email server account? (Choose two.)

Never send the password through the network in a clear text.
Never use passwords that need the Shift key.
Use servers from different vendors.
Distribute servers throughout the building, placing them close to the stakeholders.

Limit the number of unsuccessful attempts to log in to the server.

Explanation:

One of the most common types of access attack uses a packet sniffer to yield user accounts and passwords that are transmitted as clear text. Repeated attempts to log in to a server to gain unauthorized access constitute another type of access attack. Limiting the number of attempts to log in to the server and using encrypted passwords will help prevent successful logins through these types of access attack.

Refer to the exhibit. Baseline documentation for a small company had ping round trip time statistics of 36/97/132 between hosts H1 and H3. Today the network administrator checked connectivity by pinging between hosts H1 and H3 that resulted in a round trip time of 1458/2390/6066. What does this indicate to the network administrator?

Cisco ITN CCNA 1 v6.0 Chapter 11 Exam Beta Answer R&S 2018 2019 001

Connectivity between H1 and H3 is fine.
H3 is not connected properly to the network.
Something is causing interference between H1 and R1.
Performance between the networks is within expected parameters.

Something is causing a time delay between the networks.

Explanation:

Ping round trip time statistics are shown in milliseconds. The larger the number the more delay. A baseline is critical in times of slow performance. By looking at the documentation for the performance when the network is performing fine and comparing it to information when there is a problem, a network administrator can resolve problems faster.

When should an administrator establish a network baseline?

when the traffic is at peak in the network
when there is a sudden drop in traffic
at the lowest point of traffic in the network

at regular intervals over a period of time

Explanation:

An effective network baseline can be established by monitoring the traffic at regular intervals. This allows the administrator to take note when any deviance from the established norm occurs in the network.

Refer to the exhibit. An administrator is trying to troubleshoot connectivity between PC1 and PC2 and uses the tracert command from PC1 to do it. Based on the displayed output, where should the administrator begin troubleshooting?

Cisco ITN CCNA 1 v6.0 Chapter 11 Exam Beta Answer R&S 2018 2019 002

SW1

Explanation:

Tracert is used to trace the path a packet takes. The only successful response was from the first device along the path on the same LAN as the sending host. The first device is the default gateway on router R1. The administrator should therefore start troubleshooting at R1.

Which statement is true about CDP on a Cisco device?

The show cdp neighbor detail command will reveal the IP address of a neighbor only if there is Layer 3 connectivity.
To disable CDP globally, the no cdp enable command in interface configuration mode must be used.
CDP can be disabled globally or on a specific interface.

Because it runs at the data link layer, the CDP protocol can only be implemented in switches.

Explanation:

CDP is a Cisco-proprietary protocol that can be disabled globally by using the no cdp run global configuration command, or disabled on a specific interface, by using the no cdp enable interface configuration command. Because CDP operates at the data link layer, two or more Cisco network devices, such as routers can learn about each other even if Layer 3 connectivity does not exist. The show cdp neighbors detail command reveals the IP address of a neighboring device regardless of whether you can ping the neighbor.

A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?

The ARP cache is cleared.
The current content of the ARP cache is displayed.
The detailed information of the ARP cache is displayed.

The ARP cache is synchronized with the router interface.

Explanation:

Issuing the arp –d * command on a PC will clear the ARP cache content. This is helpful when a network technician wants to ensure the cache is populated with updated information.

A network administrator for a small campus network has issued the show ip interface brief command on a switch. What is the administrator verifying with this command?
- the status of the switch interfaces and the address configured on interface vlan 1
- that a specific host on another network can be reached
- the path that is used to reach a specific host on another network
- the default gateway that is used by the switch
  
  Explanation:
  
  The show ip interface brief command is used to verify the status and IP address configuration of the physical and switch virtual interfaces (SVI).
A network technician issues the C:\> tracert -6 www.cisco.com command on a Windows PC. What is the purpose of the -6 command option?
- It forces the trace to use IPv6.
- It limits the trace to only 6 hops.
- It sets a 6 milliseconds timeout for each replay.
- It sends 6 probes within each TTL time period.
  
  Explanation:
  
  The -6 option in the command C:\> tracert -6 www.cisco.com is used to force the trace to use IPv6.

A network administrator is testing network connectivity by issuing the ping command on a router. Which symbol will be displayed to indicate that a time expired during the wait for an ICMP echo reply message?

Explanation:

When the ping command is issued on a router, the most common indicators are as follows:

! – indicates receipt of an ICMP echo reply message
. – indicates a time expired while waiting for an ICMP echo reply message
U – an ICMP message of unreachability was received

Which process failed if a computer cannot access the Internet and received an IP address of 169.254.142.5?

IP
DNS
DHCP

HTTP

Explanation:

When a Windows computer cannot communicate with an IPv4 DHCP server, the computer automatically assigns itself an IP address in the169.254.0.0/16 range. Linux and Apple computers do not automatically assign an IP address.

Which command should be used on a Cisco router or switch to allow log messages to be displayed on remotely connected sessions using Telnet or SSH?

debug all
logging synchronous
show running-config

terminal monitor

Explanation:

The terminal monitor command is very important to use when log messages appear. Log messages appear by default when a user is directly consoled into a Cisco device, but require the terminal monitor command to be entered when a user is accessing a network device remotely.

By following a structured troubleshooting approach, a network administrator identified a network issue after a conversation with the user. What is the next step that the administrator should take?

Verify full system functionality.
Test the theory to determine cause.
Establish a theory of probable causes.

Establish a plan of action to resolve the issue.

Explanation:

A structured network troubleshooting approach should include these steps in sequence:

Identify the problem.
Establish a theory of probable causes.
Test the theory to determine cause.
Establish a plan of action to resolve the issue.
Verify full system functionality and implement preventive measures.
Document findings, actions, and outcomes.

True or False?

A duplex mismatch on a link between a Cisco router and a switch will cause the link to go down.
- true
- false
  
  Explanation:
  
  When a duplex mismatch occurs, data communication will occur through the link. However, the link performance could be severely affected.

Which two scenarios would result in a duplex mismatch? (Choose two.)

configuring dynamic routing incorrectly
starting and stopping a router interface during a normal operation
manually setting the two connected devices to different duplex modes
connecting a device with autonegotiation to another that is manually set to full-duplex

connecting a device with an interface running at 100 Mbps to another with an interface running at 1000 Mbps

Explanation:

Two common errors that cause duplex mismatch are (1) manually setting the two connected devices to different duplex modes and (2) connecting a device performing autonegotiation to another that is manually set to full-duplex.

An employee complains that a Windows PC cannot connect to the Internet. A network technician issues the ipconfig command on the PC and is shown an IP address of 169.254.10.3. Which two conclusions can be drawn? (Choose two.)

The PC cannot contact a DHCP server.
The DNS server address is misconfigured.
The default gateway address is not configured.
The PC is configured to obtain an IP address automatically.

The enterprise network is misconfigured for dynamic routing.

Explanation:

When a Windows PC is configured to obtain an IP address automatically, the PC will try to obtain an IP address from a DHCP server. When the PC cannot contact a DHCP server, Windows will automatically assign an address belonging to the 169.254.0.0/16 range.

What is the result if the default gateway address is misconfigured on a PC?

The PC cannot communicate with any devices.
The PC can communicate with devices both in remote networks and in the same network.
The PC can communicate with devices in the same network but not with those in remote networks.

The PC can communicate with devices in remote networks but not with those in the same network.

Explanation:

The default gateway for a PC is the closest networking device that can forward traffic to other networks. If a PC has an incorrect or nonexistent default gateway address, it will not be able to communicate with devices in remote networks. However, communication would occur between devices in the same network with or without a default gateway.