Exam 4 ICTN 2150
What is the prefix length notation for the subnet mask 255.255.255.224?
-/27
If a network device has a mask of /28, how many IP addresses are available for hosts on this network?
-14
Your organization is issued the IPv6 prefix of 2001:db8:130f::/48 by your service provider. With this prefix, how many bits are available for your organization to create /64 subnetworks if interface ID bits are not borrowed?
-16
What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
-2001:DB8:0:AB00::1234
What is the network address for the IPv6 address 2001:DB8:AA04:B5::1/64?
-2001:DB8:AA04:B5::/64
What is the prefix associated with the IPv6 address 2001:DB8:D15:EA:CC44::1/64?
-2001:DB8:D15:EA::/64
What is the most compressed representation of the IPv6 address 2001:0db8:0000:abcd:0000:0000:0000:0001?
-2001:db8:0:abcd::1
What subnet mask is represented by the slash notation /20?
-255.255.240.0
Which subnet mask would be used if 5 host bits are available?
-255.255.255.224
Which subnet mask would be used if exactly 4 host bits are available?
-255.255.255.240
A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.224. How many usable host addresses will this subnet provide?
-30
How many usable IP addresses are available on the 192.168.1.0/27
-30
A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?
-4
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
-62
If a network device has a mask of /26, how many IP addresses are available for hosts on this network?
-62
What is the interface ID of the IPv6 address 2001:DB8::1000:A9CD:47FF:FE57:FE94/64?
-A9CD:47FF:FE57:FE94
Which statement regarding the service password-encryption command is true?
-As soon as the service-password-encryption command is entered, all currently set passwords formerly displayed in plain text are encrypted.
Which IPv6 network prefix is only intended for local links and can not be routed?
-FE80::/10
What is indicated by a successful ping to the ::1 IPv6 address?
-IP is properly installed on the host.
Which two parts are components of an IPv4 address?
-Network portion & Host portion
An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?
-Router(config)# line console 0 Router(config-line)# password cisco Router(config-line)# login
Which command is used to encrypt all passwords in a router configuration file?
-Router_A(config)# service password-encryption
A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
-any line configuration mode
Which address type is not supported in IPv6?
-broadcast
Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following router commands achieves the goal of providing the highest level of security?
-enable secret trustknow1
What does the IP address 172.17.4.250/24 represent?
-host address
What is the purpose of the banner motd command?
-it provides a war to make announcements to those who log in to a router.
What is the purpose of the command ping ::1?
-it tests the internal configuration of an IPv6 host.
At a minimum, which address is required on IPv6-enabled interfaces?
-link-local
What type of address is automatically assigned to an interface when IPv6 is enabled on that interface?
-link-local
Which type of IPv6 address is not routable and used only for communication on a single subnet?
-link-local address
What will be the response from the router after the command, "router(config)# hostname portsmouth" is entered?
-portsmouth(config)#
Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?
-show ip interface brief
A router boots and enters setup mode. What is the reason for this?
-the configuration file is missing from NVRAM.
Which characteristic describes the default gateway of a host computer?
-the logical address of the router interface on the same network as the host computer.
Which statement is true about variable-length subnet masking?
-the size of each subnets may be different depending on requirements.
What is stored in the NVRAM of a Cisco router?
-the startup configuration
Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?
-to contain the commands that are used to initially configure a router on startup
What is the purpose of the startup configuration file on a Cisco router?
-to contain the commands that are used to initially configure a router on startup.
What is the purpose of the subnet mask in conjunction with an IP address?
-to determine the subnet to which the host belongs.
What is the minimum configuration for a router interface that is enabled for IPv6?
-to have a link-local IPv6 address
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
-to identify the network address of the destination network.
