exam 16-17
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Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1. What does the output of this command indicate
A router along the path did not have a route to the destination.*
Which network service automatically assigns IP addresses to devices on the network
DHCP*
What is considered the most effective way to mitigate a worm attack
Download security updates from the operating system vendor and patch all vulnerable systems.*
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
Establish a theory of probable causes.*
When configuring SSH on a router to implement secure network management, a network engineer has issued the login local and transport input ssh line vty commands. What three additional configuration actions have to be performed to complete the SSH configuration (Choose three.)
Generate the asymmetric RSA keys.* Configure the correct IP domain name.* Create a valid local username and password database.*
A teacher is having difficulties connecting his PC to the classroom network. He needs to verify that a default gateway is configured correctly. What is the best command to use to accomplish the task
Ipconfig*
A user wants to know the IP address of the PC. What is the best command to use to accomplish the task
Ipconfig*
Which method is used to send a ping message specifying the source address for the ping
Issue the ping command without specifying a destination IP address.*
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.*
An administrator decides to use "5$7*4#033!" as the password on a newly installed router. Which statement applies to the password choice
It is strong because it contains 10 numbers and special characters.*
An administrator decides to use "pR3s!d7n&0" as the password on a newly installed router. Which statement applies to the password choice
It is strong because it uses a minimum of 10 numbers, letters and special characters.*
An administrator decides to use "WhatAreyouwaiting4" as the password on a newly installed router. Which statement applies to the password choice
It is strong because it uses a passphrase.*
An administrator decides to use "password" as the password on a newly installed router. Which statement applies to the password choice
It is weak because it is a commonly used password.*
An administrator decides to use "admin" as the password on a newly installed router. Which statement applies to the password choice
It is weak because it is often the default password on new devices.*
An administrator decides to use "12345678!" as the password on a newly installed router. Which statement applies to the password choice
It is weak because it uses a series of numbers or letters.*
An administrator decides to use "Elizabeth" as the password on a newly installed router. Which statement applies to the password choice
It is weak because it uses easily found personal information.*
An administrator decides to use "Feb121978" as the password on a newly installed router. Which statement applies to the password choice
It is weak because it uses easily found personal information.*
An administrator decides to use "RobErT" as the password on a newly installed router. Which statement applies to the password choice
It is weak since it uses easily found personal information.*
A user reports a lack of network connectivity. The technician takes control of the user machine and attempts to ping other computers on the network and these pings fail. The technician pings the default gateway and that also fails. What can be determined for sure by the results of these tests
Nothing can be determined for sure at this point.*
An administrator is troubleshooting connectivity issues and needs to determine the IP address of a website. What is the best command to use to accomplish the task
Nslookup*
Which type of attack involves an adversary attempting to gather information about a network to identify vulnerabilities
Reconnaissance*
Which command will block login attempts on RouterA for a period of 30 seconds if there are 2 failed login attempts within 10 seconds
RouterA(config)# login block-for 30 attempts 2 within 10*
What is the advantage of using SSH over Telnet
SSH provides secure communications to access hosts.*
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
Something is causing a time delay between the networks.*
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 PC is configured to obtain an IP address automatically.*
A ping fails when performed from router R1 to directly connected router R2. The network administrator then proceeds to issue the show cdp neighbors command. Why would the network administrator issue this command if the ping failed between the two routers
The network administrator wants to verify Layer 2 connectivity.*
Which statement describes the ping and tracert commands
Tracert shows each hop, while ping shows a destination reply only.*
What is the difference between a virus and a worm
Worms self-replicate but viruses do not.*
Refer to the exhibit. Host H3 is having trouble communicating with host H1. The network administrator suspects a problem exists with the H3 workstation and wants to prove that there is no problem with the R2 configuration. What tool could the network administrator use on router R2 to prove that communication exists to host H1 from the interface on R2, which is the interface that H3 uses when communicating with remote networks
an extended ping*
A network engineer is analyzing reports from a recently performed network baseline. Which situation would depict a possible latency issue
an increase in host-to-host ping response times*
On which two interfaces or ports can security be improved by configuring executive timeouts (Choose two.)
console ports* vty ports*
A student wants to save a router configuration to NVRAM. What is the best command to use to accomplish the task
copy running-config startup-config*
What is an accurate description of redundancy
designing a network to use multiple paths between switches to ensure there is no single point of failure*
What is the role of an IPS
detecting and blocking of attacks in real time*
Which component is designed to protect against unauthorized communications to and from a computer
firewall*
A support technician needs to know the IP address of the wireless interface on a MAC. What is the best command to use to accomplish the task
ipconfig getifaddr en0*
A user is redesigning a network for a small company and wants to ensure security at a reasonable price. The user deploys a new application-aware firewall with intrusion detection capabilities on the ISP connection. The user installs a second firewall to separate the company network from the public network. Additionally, the user installs an IPS on the internal network of the company. What approach is the user implementing
layered*
When applied to a router, which command would help mitigate brute-force password attacks against the router
login block-for 60 attempts 5 within 60*
What feature of SSH makes it more secure than Telnet for a device management connection
login information and data encryption*
Which example of malicious code would be classified as a Trojan horse
malware that was written to look like a video game*
Which attack involves a compromise of data that occurs between two end points
man-in-the-middle attack*
Users are complaining that they are unable to browse certain websites on the Internet. An administrator can successfully ping a web server via its IP address, but cannot browse to the domain name of the website. Which troubleshooting tool would be most useful in determining where the problem is
nslookup*
What type of attack may involve the use of tools such as nslookup and fping
reconnaissance attack*
A network engineer is troubleshooting connectivity issues among interconnected Cisco routers and switches. Which command should the engineer use to find the IP address information, host name, and IOS version of neighboring network devices
show cdp neighbors detail*
Students who are connected to the same switch are having slower than normal response times. The administrator suspects a duplex setting issue. What is the best command to use to accomplish the task
show interfaces*
A network technician is troubleshooting an issue and needs to verify the IP addresses of all interfaces on a router. What is the best command to use to accomplish the task
show ip interface brief*
Which command can an administrator execute to determine what interface a router will use to reach remote networks
show ip route*
A network technician is troubleshooting an issue and needs to verify all of the IPv6 interface addresses on a router. What is the best command to use to accomplish the task
show ipv6 interface*
Only employees connected to IPv6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv6 routing has been enabled. What is the best command to use to accomplish the task
show running-config*
Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests initiated from internal hosts
tateful packet inspection*
Which command can an administrator issue on a Cisco router to send debug messages to the vty lines
terminal monitor*
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
terminal monitor*
What information about a Cisco router can be verified using the show version command
the value of the configuration register*
What is the purpose of a small company using a protocol analyzer utility to capture network traffic on the network segments where the company is considering a network upgrade
to document and analyze network traffic requirements on each network segment*
Why would a network administrator use the tracert utility
to identify where a packet was lost or delayed on a network*
What is the purpose of the network security accounting function
to keep track of the actions of a user*
What is the purpose of the network security authentication function
to require users to prove who they are*
Which command has to be configured on the router to complete the SSH configuration
transport input ssh*
A network administrator is upgrading a small business network to give high priority to real-time applications traffic. What two types of network services is the network administrator trying to accommodate (Choose two.)
voice* video*
A technician is to document the current configurations of all network devices in a college, including those in off-site buildings. Which protocol would be best to use to securely access the network devices
SSH*
Which statement is true about Cisco IOS ping indicators
'U' may indicate that a router along the path did not contain a route to the destination address and that the ping was unsuccessful.*
