NET-135 Chapters 9-12

Which of the following is a network broadcast address? A. 10.1.255.255 B. 192.168.255.1 C. 224.1.1.255 D. 172.30.255.255

D. 172.30.255.255

Which of the following are private IP networks? (Choose two answers.) A. 172.31.0.0 B. 172.32.0.0 C. 192.168.255.0 D. 192.1.168.0 E. 11.0.0.0

A. 172.31.0.0 C. 192.168.255.0

Which of the following correctly defines the current BID format? A. 2-bit priority field, 12-bit system ID extension, 6-byte MAC address B. 8-bit priority field, 8-bit system ID extension, 6-byte MAC address C. 2-byte system extension field, 6-byte MAC address D. 2-byte priority field, 6-byte MAC address

A. 2-bit priority field, 12-bit system ID extension, 6-byte MAC address

Jack has configured a new network interface card and configured an Ethernet port with the classful address 192.168.22.15. How many host IP addresses are currently available on this subnet? A. 253 B. 127 C. 126 D. 254

A. 253

Sally has been tasked with securing the newly installed Cisco Nexus 500 switch. Which two actions would help her achieve this goal? A. Add strong passwords for the admin account and all access methods B. Ensure that all administrative users use the default admin account for access C. Use the default SSH configuration for remote access D. Generate a new matched public and private key pair for encryption to be used for Telnet access E. Generate a new matched public and private key pair for encryption to be used for SSH access

A. Add strong passwords for the admin account and all access methods E. Generate a new matched public and private key pair for encryption to be used for SSH access

A switch's Eth1/1 interface, a trunk that supports VLANs 1-10, has a speed of 10 Gbps. The switch currently has all default settings for STP. Which of the following actions results in the switch using an STP cost of 2 for that interface in VLAN 3? (Choose two answers.) A. Adding no configuration B. spanning-tree vlan 3 port-cost 19 C. spanning-tree cost 2 D. spanning-tree port-cost 19

A. Adding no configuration C. spanning-tree cost 2

Before Class B network 172.16.0.0 is subnetted by a network engineer, what parts of the structure of the IP addresses in this network already exist, with a specific size? A. Network B. Subnet C. Host D. Broadcast

A. Network C. Host

A newly configured Cisco Nexus switch was configured by a junior engineer. Tom noticed that the engineer disabled SSH. What two commands must Tom enter to generate a new key and enable SSH? A. feature ssh B. ssh key rsa 2048 C. ssh key 2048 D. enable ssh feature E. enable ssh feature

A. feature ssh B. ssh key rsa 2048

Examine the following extract from the show spanning-tree command on a Cisco Nexus switch: Which of the following answers is true about the switch on which this command output was gathered? A. The information is about the STP instance for VLAN 1 B. The information is about the STP instance for VLAN 3. C. The command output confirms that this switch cannot possibly be the root switch. D. The command output confirms that this switch is currently the root switch.

A. The information is about the STP instance for VLAN 1

Which command enables you to configure a user named Fred to have read-only access to the Nexus switch CLI? A. username Fred password Cisco123 role network-operator B. username Fred password Cisco123 role network-admin C. username Fred read-only D. user Fred password Cisco123 role read-only

A. username Fred password Cisco123 role network-operator

Which of the following are not valid Class A network IDs? (Choose two answers.) A. 1.0.0.0 B. 130.0.0.0 C. 127.0.0.0 D. 9.0.0.0

B. 130.0.0.0 C. 127.0.0.0

Which of the following is a Class A, B, or C network ID? A. 10.1.0.0 B. 192.168.1.0 C. 127.0.0.0 D. 172.20.0.1

B. 192.168.1.0

What is the maximum number of hosts in a Class B network? A. 15 B. 65,534 C. 126 D. 254 E. 65,536

B. 65,534

Samantha configured her PC with the IP address 172.16.1.56. What class of network has she defined? A. Class A B. Class B C. Class C D. Class D E. Class E

B. Class B

A Class B network needs to be subnetted such that it supports 100 subnets and 100 hosts/subnet. Which of the following answers list a workable combination for the number of network, subnet, and host bits? (Choose two answers.) A. Network = 16, subnet = 7, host = 7 B. Network = 16, subnet = 8, host = 8 C. Network = 16, subnet = 9, host = 7 D. Network = 8, subnet = 7, host = 17

B. Network = 16, subnet = 8, host = 8 C. Network = 16, subnet = 9, host = 7

Which of the following statements is incorrect regarding RPVST+? A. RPVST+ allows that VLANs to be configured with different unique paths B. RPVST+ requires that all VLANs be configured with a specific path as a single instance. C. RPVST+ provides load balancing D. The convergence time in RPVST+ has been greatly reduced from PVST+.

B. RPVST+ requires that all VLANs be configured with a specific path as a single instance.

Switch SW3 is receiving only two hello BPDUs, both from the same root switch, received on the two interfaces listed as follows: SW3 has no STP-related configuration commands. The hello received on Eth1/13 lists root cost 10, and the hello received on Eth1/1 lists root cost 20. Which of the following is true about STP on SW3? A. SW3's Eth1/1 will become a designated port. B. SW3 will choose Eth1/13 as its root port. C. SW3's Eth1/13 will become a designated port. D. SW3 will choose Eth1/1 as its root port.

B. SW3 will choose Eth1/13 as its root port.

A network engineer spends time thinking about the entire Class B network 172.16.0.0 and how to subnet that network. He then chooses how to subnet this Class B network and creates an addressing and subnetting plan, on paper, showing his choices. If you compare his thoughts about this network before subnetting the network, to his thoughts about this network after mentally subnetting the network, which of the following occurred to the parts of the structure of addresses in this network? A. The subnet part got smaller. B. The host part got smaller. C. The network part got smaller. D. The host part was removed E. The network part was removed.

B. The host part got smaller.

Which statement is true about the IP address 172.25.23.10? A. The network broadcast is 172.25.23.255, and there are 254 possible hosts. B. The network broadcast is 172.25.255.255 and there are 65,534 possible hosts. C. The network broadcast is 172.255.255.255 and there are 16,777,214 possible hosts. D. The network broadcast is 172.25.255.0 and there are 65,534 possible hosts.

B. The network broadcast is 172.25.255.255 and there are 65,534 possible hosts.

Which of the following are true about IP address 172.16.99.45's IP network? (Select two answers.) A. The network ID is 172.0.0.0. B. The network is a Class B network. C. The default mask for the network is 255.255.255.0. D. The number of host bits in the unsubnetted network is 16.

B. The network is a Class B network. D. The number of host bits in the unsubnetted network is 16.

Bill is trying to configure remote access on the Cisco Nexus 5500 switch. The users want to use locally configured usernames and passwords, which are already configured. Which two commands allow Bill to complete this task? A. remote access local B. line vty 0 15 C. login local D. line vty local E. login user local

B. line vty 0 15 C. login local

On a Nexus switch, which of the following commands change the value of the bridge ID? (Choose two answers.) A. spanning-tree bridge-id value B. spanning-tree vlan vlan-number root {primary | secondary} C. spanning-tree vlan vlan-number priority value D. set spanning-tree priority value

B. spanning-tree vlan vlan-number root {primary | secondary} D. set spanning-tree priority value

What is the maximum number of networks in a Class A network? A. 15 B. 127 C. 126 D. 254

C. 126

William needs to configure a network port, but the IP address must provide no more than 254 hosts. Which network IP address will satisfy the business requirements? A. 128.64.32.15 B. 191.82.36.76 C. 193.67.34.2 D. 224.35.4.56

C. 193.67.34.2

An engineer configures a switch to put interfaces Eth1/1 and Eth1/2 into the same EtherChannel. Which of the following terms is used in the configuration commands? A. Virtual PortChannel B. EtherChannel C. Channel-group D. Ethernet-Channel

C. Channel-group

An engineer had formerly configured a Cisco Nexus 5500 switch to allow Telnet access so that the switch expected a password of mypassword from the Telnet user admin with the role of network-admin. The engineer then changed the configuration to support Secure Shell. Which of the following commands could have been part of the new configuration? A. A login local vty mode subcommand B. A username name password password global configuration command C. None of these answers is correct. D. A username name password password vty mode subcommand

C. None of these answers is correct.

Which of the following terms are not used to reference the one number in each subnet used to uniquely identify the subnet? (Choose two answers.) A. Subnet ID B. Subnet number C. Subnet broadcast D. Subnet name E. Subnet address

C. Subnet broadcast D. Subnet name

The following command was copied and pasted into configuration mode when a user was telnetted into a Cisco switch: banner motd #this is the login banner # Which of the following is true about what occurs the next time a user logs in from the console? A. No banner text is displayed. B. The banner text "his is" is displayed. C. The banner text "this is the login banner" is displayed. D. The banner text "Login banner configured, no text defined" is displayed.

C. The banner text "this is the login banner" is displayed.

Which of the following is used as the highest priority for determining the root switch? A. The highest system extension B. The lowest STP cost C. The numerically lowest BID D. The highest priority E. The numerically highest BID

C. The numerically lowest BID

Bobby is configuring a Nexus switch that is in production at Acme. He has been tasked with enabling the switch for RPVST+. Which command will accomplish this task? A. spanning-tree mode rapid-pvst in interface configuration mode B. feature mode spanning tree in global configuration mode C. spanning-tree mode rapid-pvst in global configuration mode D. spanning-tree mode rpvst+ in global configuration mode

C. spanning-tree mode rapid-pvst in global configuration mode

Jackson configured a new video terminal with the IP address of 239.1.1.32. What class of network has he defined? A. Class A B. Class B C. Class C D. Class D E. Class E

D. Class D

What is the default behavior for Cisco Nexus switches with regard to spanning tree? A. 802.1D STP B. PVST+ C. MST D. RPVST+

D. RPVST+

Which of the following are true about IP address 192.168.6.7's IP network? A. The network is a Class B network. B. Which of the following are true about IP address 192.168.6.7's IP network? (Select two answers.) C. The number of host bits in the unsubnetted network is 16. D. The default mask for the network is 255.255.255.0.

D. The default mask for the network is 255.255.255.0.

Which statement is true about the IP address 10.22.36.92? A. The network ID is 10.255.255.255, and there are 128 possible hosts. B. The network ID is 10.0.0.0, and there are 128 possible networks. C. The network ID is 10.255.255.255, and there are 126 possible hosts. D. The network ID is 10.0.0.0, and there are 126 possible networks.

D. The network ID is 10.0.0.0, and there are 126 possible networks.

Why does the formula for the number of hosts per subnet (2H - 2) require the subtraction of two hosts? A. To reserve two addresses for redundant default gateways (routers) B. To reserve the two addresses required for DHCP operation C. To reserve addresses for the subnet ID and default gateway (router) D. To reserve addresses for the subnet broadcast address and subnet ID

D. To reserve addresses for the subnet broadcast address and subnet ID

At Acme Inc, a junior engineer has incorrectly set the cost for the VLAN 15 on the 100-Mbps interfaces. What command must he use to properly configure this VLAN on at the default cost? A. spanning-tree vlan 15 cost 4 in interface configuration mode B. spanning-tree vlan cost 19 in VLAN configuration mode C. spanning-tree vlan 15 cost 4 in global configuration mode D. spanning-tree vlan 15 cost 19 in interface configuration mode

D. spanning-tree vlan 15 cost 19 in interface configuration mode

Which of the following are not valid Class B network IDs? A. 130.0.0.0 B. 191.255.0.0 C. 128.0.0.0 D. 150.255.0.0 E. All are valid Class B network IDs

E. All are valid Class B network IDs

In which of the following modes of the CLI could you configure the speed setting for interface Ethernet 1/5? A. User mode B. Enable mode C. Global configuration mode D. VLAN mode E. Interface configuration mode

E. Interface configuration mode