Routing&SwitchingT1

What does a subnet mask define?

The boundary between network and host portions of an IP address

PC1, PC2, PC3, and PC4 are all connected to SW1. PC1 sends a frame to PC4, however, SW1 doesn't have an entry for PC4's MAC address in the MAC address table. Which device/devices will receive the frame from PC1?

PC2, PC3, PC4

Which of the following are valid VTP modes?

Server, Client, Transparent

What is the main purpose of Spanning Tree Protocol (STP)?

Prevent Layer 2 loops and broadcast storms

Which command will configure a switch port to use the IEEE standard method of inserting VLAN membership information into Ethernet frames?

Switch(config-if)# switchport trunk encapsulation dot1q

You connect a host to a switch port, but the new host cannot log into the server that is plugged into the same switch. What could the problem be?

The switch port the host is connected to is not configured to the correct VLAN membership.

Which of the following statements about BPDU are correct?

BPDUs are used by STP to exchange information between switches.

BPDUs determine the root bridge election.

Which of the following are twisted‑pair Ethernet cable categories?

Cat5e, Cat6

Which device operates at OSI Layer 3?

Router

What happens if two switches have the same bridge priority?

The switch with the lowest MAC address becomes the root bridge.

Which two statements describe a switch port that is configured with PortFast? (Choose two.)

The switch port immediately transitions from blocking to the forwarding state.

The switch port should never receive BPDUs.

What value determines the root bridge when all switches connected by trunk links have default STP configurations?

MAC address

Which protocol is the IEEE standard for STP?

802.1D

What is the primary purpose of STP?

Prevent Layer 2 loops

What is the primary role of a default gateway?

Forward traffic to remote networks

What does CIDR stand for?

Classless Inter‑Domain Routing

Which switching technology reduces the size of a broadcast domain?

VLANs

Which STP port is selected to forward traffic toward the root bridge?

Root port

A network contains multiple VLANs spanning multiple switches. What happens when a device in VLAN 20 sends a broadcast Ethernet frame?

Only devices in VLAN 20 see the frame.

The switch in the network above has already learnt the MAC addresses of all PCs; PC0, PC1, PC2 & PC3.  Suppose PC0 (connected to the hub) sends a frame to PC1 (also connected to the hub).  What will the switch do?

The hub forwards the frame from PC0 to PC1,

The switch discards the frame,

The hub regenerates the signal and forwards the frame out all connected interfaces.

Which device provides wireless access to the LAN?

Access Point

Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

when connecting a Cisco switch to a non-Cisco switch,

on links that should not be trunking

Which of the following is true regarding VLANs?

VTP is used to send VLAN information to switches in a configured VTP domain.

Refer to the exhibit. How many broadcast domains are displayed?

8

Which three components are combined to form a bridge ID? (Choose three.)

Bridge priority, Extended system ID, MAC address

Which device would you expect to find at the border of a company's network and the Internet?

router

Which of the following is true regarding VLANs?

VTP is used to send VLAN information to switches in a configured VTP domain.

Which device creates multiple collision domains but a single broadcast domain by default?

Switch

Which device is capable of routing between different IP networks?

Router

What is required for devices in different VLANs to communicate?

A router or Layer 3 switch

Which device below is commonly used to enforce network security policies?

Firewall

Which connector is typically used with twisted‑pair Ethernet?

RJ‑45

Examine the switch connections below; SW4 is selected as the root bridge.  What are the root ports on the other three switches? (Select three ports)

G0/1 on SW3, G0/1 on SW1, G0/0 on SW2

Select all fiber optic connectors shown below:

SC

Which of the following commands sets a trunk port on a 2960 switch?

switchport mode trunk

VTPv2
VTPv1
All versions
VTPv3

Adds support for Token Ring VLANs
Default version on most Cisco switches
Allow VLAN database synchronization
Supports extended VLANs (1006–4094)

What is the default bridge priority in STP if not manually configured?

32768

Refer to the exhibit. In what switch mode should port G0/1 be assigned if Cisco best practices are being used?

trunk

Which of the following are enhancements to STP?

PVST+, RSTP, MSTP

Which of the following device connects multiple devices in the same LAN?

switch

Which of the following commands correctly configures an IP address?

ip address 192.168.1.1 255.255.255.0

If a switch receives a frame with an unknown destination MAC, it will:

Flood the frame out all ports except the ingress

What does the diagram represent?

Logical segmentation of a Layer 2 network into multiple broadcast domains

What two features does Spanning Tree Protocol (STP) provide to ensure proper network operations? (Choose two.)

Redundant links between Layer 2 switches, Removing single points of failure with multiple Layer 2 switches

Which two characteristics describe the native VLAN? (Choose two.)

The native VLAN traffic will be untagged across the trunk link.,

The native VLAN provides a common identifier to both ends of a trunk.

Which type of connector is shown in the image?

RJ-45

Which STP port role is adopted by a switch port if there is no other port with a lower cost to the root bridge?

root port

Which of the following messages are sent to a unicast MAC address? (Select all that apply.)

ICMP echo request, ICMP echo reply, ARP reply

What is the default DTP mode on most Cisco switch interfaces?

Dynamic auto

What is the valid host range in 10.1.2.0/24?

10.1.2.1 – 10.1.2.254

What is the default DTP mode on most Cisco switch interfaces?

Dynamic auto

On a switch that is configured with multiple VLANs, which command will remove only VLAN 100 from the switch?

Switch(config)# no vlan 100

Which of the following are DTP modes?

Dynamic desirable, Dynamic auto

Which address is in the IPv4 link‑local APIPA range?

169.254.10.20

What must match on all switches in a VTP domain for proper operation?

VTP domain name

Which of the following are requirements for VTP to work properly?

Same VTP domain name,

At least one trunk link between switches

Which VTP mode allows a switch to create, modify, and delete VLANs?

Server

Which of the following provide inter-switch VLAN communication?

1. ISL

2. VTP

3. 802.1Q

4. 802.3Z

1 and 3

Refer to the exhibit. A network administrator is reviewing port and VLAN assignments on switch S2 and notices that interfaces Gi0/1 and Gi0/2 are not included in the output. Why would the interfaces be missing from the output?

They are configured as trunk interfaces.

Refer to the exhibit. A network administrator has configured router CiscoVille with the above commands to provide inter-VLAN routing. What command will be required on a switch that is connected to the Gi0/0 interface on router CiscoVille to allow inter-VLAN routing?​

switchport mode trunk