CCNA Test 5
What is an advantage of deploying IPv4 NAT technology for internal hosts in an organization?
provides flexibility in designing the IPv4 addressing scheme
Which three software packages are available for Cisco IOS Release 15.0?
Unified Communications Security Data
Which protocol or service allows network administrators to receive system messages that are provided by network devices?
syslog
What is the major release number in the IOS image name c1900-universalk9-mz.SPA.152-3.T.bin?
15
The graphic shows configuration commands on Router1: Router1(config)# ip nat inside source static 192.168.0.100 209.165.20.25 Router1(config)# interface serial0/0/0 Router1(config-if)# ip nat inside Router1(config-if)# ip address 10.1.1.2 255.255.255.0 Router1(config)# interface serial0/0/2 Router1(config-if)# ip address 209.165.20.25 255.255.255.0 Router1(config-if)# ip nat outside Refer to the exhibit. Which address or addresses represent the inside global address? Correct Response Your Response
209.165.20.25
Which statement is true about CDP on a Cisco device?
CDP can be disabled globally or on a specific interface.
What is used as the default event logging destination for Cisco routers and switches?
Console Line
What are two of the required steps to configure PAT?
Define a pool of global addresses to be used for overload translation. Identify the inside interface.
Beginning with the Cisco IOS Software Release 15.0, which license is a prerequisite for installing additional technology pack licenses?
IPBase
The exhibit displays a web server with an IPv4 address of 192.168.10.2/24, which is connected to switch SW1. SW1 is connected to the Fa0/1 port on router R2, which is connected through the S0/0/0 interface to the Internet. There is a client computer that is located in the Internet cloud with an IPv4 address 209.265.200.254. R2 is configured: R2(config)# ip nat inside source static 192.168.10.2 209.165.201.5 R2(config)# interface Fa0/1 R2(config-if)# ip address 192.168.10.254 255.255.255.0 R2(config-if)# ip nat inside R2(config-if)# exit R2(config)# interface Serial0/0/0 R2(config-if)# ip address 209.165.200.225 255.255.255.224 Refer to the exhibit. A technician is configuring R2 for static NAT to allow the client to access the web server. What is a possible reason that the client PC cannot access the web server?
Interface S0/0/0 should be identified as the outside NAT interface.
What is the major benefit of using NAT with Port Address Translation?
It allows many internal hosts to share the same public IPv4 address.
What statement describes a Cisco IOS image with the "universalk9_npe" designation for Cisco ISR G2 routers?
It is an IOS version that, at the request of some countries, removes any strong cryptographic functionality.
Which method is used by a PAT-enabled router to send incoming packets to the correct inside hosts?
It uses the destination TCP or UDP port number on the incoming packet.
Which two statements are true about NTP servers in an enterprise network? (Choose two.)
NTP servers ensure an accurate time stamp on logging and debugging information. NTP servers at stratum 1 are directly connected to an authoritative time source.
Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?
PAT using an external interface
What is the purpose of port forwarding
Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?
Product Activation Key
A network administrator is configuring a static NAT on the border router for a web server located in the DMZ network. The web server is configured to listen on TCP port 8080. The web server is paired with the internal IP address of 192.168.5.25 and the external IP address of 209.165.200.230. For easy access by hosts on the Internet, external users do not need to specify the port when visiting the web server. Which command will configure the static NAT?
R1(config)# ip nat inside source static tcp 192.168.5.25 8080 209.165.200.230 80
Refer to the exhibit. Routers R1 and R2 are connected via a serial link. One router is configured as the NTP master, and the other is an NTP client. Which two pieces of information can be obtained from the partial output of the show ntp associations detail command on R2? (Choose two.)
Router R1 is the master, and R2 is the client. The IP address of R1 is 192.168.1.2.
What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?
SPA
Which command would a network engineer use to find the unique device identifier of a Cisco router?
Show License UDI
A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?
The company has more private IP addresses than available public IP addresses.
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 two conditions should the network administrator verify before attempting to upgrade a Cisco IOS image using a TFTP server? (Choose two.)
Verify connectivity between the router and TFTP server using the ping command. Verify that there is enough flash memory for the new Cisco IOS image using the show flash command.
a NAT pool named corp that defines the starting and ending public IP addresses
The request to the server for the seventh user fails.
A network administrator configures a router with the command sequence: R1(config)# boot system tftp://c1900-universalk9-mz.SPA.152-4.M3.bin R1(config)# boot system rom What is the effect of the command sequence?
The router will load IOS from the TFTP server. If the image fails to load, it will load the IOS image from ROM.
A network administrator has issued the logging trap 4 global configuration mode command. What is the result of this command?
The syslog client will send to the syslog server any event message that has a severity level of 4 and lower.
What is a disadvantage of NAT?
There is no end-to-end addressing.
Refer to the exhibit. Which two conclusions can be drawn from the syslog message that was generated by the router? (Choose two.)
This message indicates that service timestamps have been configured. This message is a level 5 notification message.
In addition to IPBase, what are the three technology packs that are shipped within the universal Cisco IOS Software Release 15 image?
Unified Communications Data Security
What are two benefits of NAT?
What are two benefits of NAT? It adds a degree of privacy and security to a network.
A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?
a NAT pool named corp that defines the starting and ending public IP addresses
What is the primary purpose of NAT?
conserve IPv4 addresses
Which syslog message type is accessible only to an administrator and only via the Cisco CLI?
debugging
The graphic shows partial output of the show running-config command: interface FastEthernet 0/0 ip address 10.10.10.1 255.255.255.0 ip nat inside no cdp enable hold-queue 32 in hold-queue 100 out ! interface FastEthernet 0/1 ip address dhcp ip nat outside no cdp enable ! ip classless ip http server ! ip nat inside source list 102 interface fastethernet0/1 overload access-list 102 permit ip 10.10.10.0 0.0.0.255 any no cdp run ! where the line "access-list 102 permit ip 10.10.10.0 0.0.0.255 any" is highlighted with color yellow and an red arrow is pointed to the line from the right end Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?
defines which addresses can be translated
Which command is used to configure a one-time acceptance of the EULA for all Cisco IOS software packages and features?
license accept end user agreement
A network engineer is upgrading the Cisco IOS image on a 2900 series ISR. What command could the engineer use to verify the total amount of flash memory as well as how much flash memory is currently available?
show flash0:
The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?
synchronizes the system clock with the time source with IP address 10.1.1.1
What is defined by the ip nat pool command when configuring dynamic NAT?
the pool of global address
Refer to the exhibit. What does the number 17:46:26.143 represent?
the time when the syslog message was issued
Why would a network administrator issue the show cdp neigbors command on a router?
to display device ID and other information about directly connected Cisco devices