CISCO CCNA 200-301 Free Exam Questions

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1 / 60

How are the switches in a spine-and-leaf topology interconnected?

Each leaf switch is connected to each spine switch

Each leaf switch is connected to one of the spine switches

Each leaf switch is connected to two spine switches, making a loop

Each leaf switch is connected to a central leaf switch, then uplinked to a core spine switch

2 / 60

What occurs when PortFast is enabled on an interface that is connected to another switch?

After spanning-tree converges, PortFast shuts down any port that receives BPDUs

Root port choice and spanning-tree recalculation are accelerated when a switch link goes down

Spanning-tree fails to detect a switching loop increasing the likelihood of broadcast storms

VTP is allowed to propagate VLAN configuration information from switch to switch automatically

3 / 60

What is a benefit for external users who consume public cloud resources?

All hosted on physical servers

Implemented over a dedicated WAN

Accessed over the Internet

Located in the same data center as the users

4 / 60

When should an engineer implement a collapsed-core architecture?

Only when using VSS technology

For small networks with minimal need for growth

For large networks that are connected to multiple remote sites

The access and distribution layers must be on the same device

5 / 60

What is the difference between 1000BASE-LX/LH and 1000BASE-ZX interfaces?

1000BASE- LX/LH is supported on links up to 10km, and 1000Base-ZX operates over links up to 70 km

1000BASE-ZX is supported on links up to 1000km, and 1000BASE-LX/LH operates over links up to 70 km

1000BASE-ZX interoperates with dual-rate 100M/1G 10Km SFP over multimode fiber, and 1000BASE-LX/LH supports only single-rate

1000BASE-LX/LH interoperates with multimode and single-mode fiber, and 1000BASE-ZX needs a conditioning patch cable with multimode

6 / 60

What is the role of a firewall in an enterprise network?

Forwards packets based on stateless packet inspection

Explicitly denies all packets from entering an administrative domain

Determines which packets are allowed to cross from unsecured to secured networks

Processes unauthorized packets and allows passage to less secure segments of the network

7 / 60

Which action is taken by a switch port enabled for PoE power classification override?

When a powered device begins drawing power from a PoE switch port, a syslog message is generated

As power usage on a PoE switch port is checked data flow to the connected device is temporarily paused

Should a monitored port exceed the maximum administrative value for power, the port is shut down and err-disabled

If a switch determines that a device is using less than the minimum configured power, it assumes the device has failed and disconnects it

8 / 60

Which action is taken by the data plane within a network device?

Forwards traffic to the next hop

Provides CLI access to the network device

Constructs a routing table based on a routing protocol

Looks up an egress interface in the forwarding information base

9 / 60

A network engineer must configure an interface with IP address 10.10.10.145 and a subnet mask equivalent to 11111111.11111111.11111111.11111000. Which subnet mask must the engineer use?

/27

/28

/29

/30

10 / 60

The address block 192.168.32.0/24 must be subnetted into smaller networks. The engineer must meet these requirements:
✑ Create 8 new subnets.
✑ Each subnet must accommodate 30 hosts.
✑ Interface VLAN 10 must use the last usable IP in the first new subnet.
✑ A Layer 3 interface is used.
Which configuration must be applied to the interface?

switchport ip address 192.168.32.65 255.255.255.240

no switchport ip address 192.168.32.30 255.255.255.224

no switchport mode trunk ip address 192.168.32.97 255.255.255.224

no switchport mode access ip address 192.168.32.62 255.255.255.240

11 / 60

Which property is shared by 10GBase-SR and 10GBase-LR interfaces?

Both use the multimode fiber type

Both use the single-mode fiber type

Both require UTP cable media for transmission

Both require fiber cable media for transmission

12 / 60

How is RFC 1918 addressing used in a network?

They are used with NAT to preserve public IPv4 addresses

They are used in place of public addresses for Increased security

They are used by Internet Service Providers to route over the Internet

They are used to access the Internet from the internal network without conversion

13 / 60

What causes a port to be placed in the err-disabled state?

Latency

Link flapping

Nothing plugged into the port

Shutdown command issued on the port

14 / 60

What is a function performed by a web server?

Securely store files for FTP access

Send and retrieve email from client devices

Authenticate and authorize a user's identity

Provide an application that is transmitted over HTTP

15 / 60

Why is UDP more suitable than TCP for applications that require low latency such as VoIP?

UDP reliably guarantees delivery of all packets: TCP drops packets under heavy load

TCP sends an acknowledgement for every packet received: UDP operates without acknowledgments

UDP uses sequencing data for packets to arrive in order TCP offers the capability to receive packets in random order

TCP uses congestion control for efficient packet delivery: UDP uses flow control mechanisms for the delivery of packets

16 / 60

Which set of 2 4 GHz nonoverlapping wireless channels is standard in the United States?

Channels 1, 6, and 11

Channels 2, 7, and 11

Channels 1, 6, 11, and 14

Channels 2, 7, 9, and 11

17 / 60

A network engineer must implement an IPv6 configuration on the vlan 2000 interface to create a routable locally-unique unicast address that is blocked from being advertised to the internet. Which configuration must the engineer apply?

interface vlan 2000 ipv6 address fd00::1234:2343/64

interface vlan 2000 ipv6 address fe80:0000:aaaa::1234:2343/64

interface vlan 2000 ipv6 address ff00:0000:aaaa::1234:2343/64

interface vlan 2000 ipv6 address fc00:0000:aaaa::a15d:1234:2343:8aca/64

18 / 60

What is the collapsed layer in collapsed core architectures?

access and WAN

core and WAN

Core and distribution

distribution and access

19 / 60

Which type of IPv6 address is similar to a unicast address but is assigned to multiple devices on the same network at the same time?

Link-local address

Multicast address

Anycast address

Global unicast address

20 / 60

What is the function of a controller in controller-based networking?

It centralizes the data plane for the network

It is a pair of core routers that maintain all routing decisions for a campus

It is the card on a core router that maintains all routing decisions for a campus

It serves as the centralized management point of an SDN architecture

21 / 60

What are network endpoints?

Support inter-VLAN connectivity

A threat to the network if they are compromised

Enforce policies for campus-wide traffic going to the Internet

Act as routers to connect a user to the service provider network

22 / 60

Why was the RFC 1918 address space defined?

Support the NAT protocol

Preserve public IPv6 address space

Reduce instances of overlapping IP addresses

Conserve public IPv4 addressing

23 / 60

Which type of organization should use a collapsed-core architecture?

Small and needs to reduce networking costs

Large and requires a flexible, scalable network design

Large and must minimize downtime when hardware fails

Currently small but is expected to grow dramatically in the near future

24 / 60

What is the maximum bandwidth of a T1 point-to-point connection?

2.048 Mbps

43.7 Mbps

1.544 Mbps

34.368 Mbps

25 / 60

What is a network appliance that checks the state of a packet to determine whether the packet is legitimate?

Firewall

LAN controller

Layer 2 switch

Load balancer

26 / 60

You are configuring your edge routers interface with a public IP address for Internet connectivity. The router needs to obtain the IP address from the service provider dynamically.
Which command is needed on interface FastEthernet 0/0 to accomplish this?

ip route

ip address dhcp

ip default-network

ip default-gateway

ip address dynamic

27 / 60

What is a characteristic of spine-and-leaf architecture?

It provides variable latency

Each device is separated by the same number of hops

It provides greater predictability on STP blocked ports

Each link between leaf switches allows for higher bandwidth

28 / 60

How does CAPWAP communicate between an access point in local mode and a WLC?

The access point must be connected to the same switch as the WLC

The access point must directly connect to the WLC using a copper cable

The access point must not be connected to the wired network, as it would create a loop

The access point has the ability to link to any switch in the network, assuming connectivity to the WLC

29 / 60

What is the default behavior of a Layer 2 switch when a frame with an unknown destination MAC address is received?

The Layer 2 switch drops the received frame

The Layer 2 switch sends a copy of a packet to CPU for destination MAC address learning

The Layer 2 switch floods packets to all ports except the receiving port in the given VLAN

The Layer 2 switch forwards the packet and adds the destination MAC address to its MAC address table

30 / 60

Which command automatically generates an IPv6 address from a specified IPv6 prefix and MAC address of an interface?

ipv6 address dhcp

ipv6 address autoconfig

ipv6 address 2001:DB8:5:112::/64 eui-64

ipv6 address 2001:DB8:5:112::2/64 link-local

31 / 60

What is the difference in data transmission delivery and reliability between TCP and UDP?

TCP requires the connection to be established before transmitting data. UDP transmits data at a higher rate without ensuring packet delivery

UDP sets up a connection between both devices before transmitting data. TCP uses the three-way handshake to transmit data with a reliable connection

TCP transmits data at a higher rate and ensures packet delivery. UDP retransmits lost data to ensure applications receive the data on the remote end

UDP is used for multicast and broadcast communication. TCP is used for unicast communication and transmits data at a higher rate with error checking

32 / 60

In which situation is private IPv4 addressing appropriate for a new subnet on the network of an organization?

The network has multiple endpoint listeners, and it is desired to limit the number of broadcasts

There is limited unique address space, and traffic on the new subnet will stay local within the organization

The ISP requires the new subnet to be advertised to the Internet for web services

Traffic on the subnet must traverse a site-to-site VPN to an outside organization

33 / 60

What is a role of access points in an enterprise network?

Integrate with SNMP in preventing DDoS attacks

Serve as a first line of defense in an enterprise network

Support secure user logins to devices on the network

Connect wireless devices to a wired network

34 / 60

How does a Cisco Unified Wireless Network respond to Wi-Fi channel overlap?

It allows the administrator to assign the channels on a per-device or per-interface basis

It analyzes client load and background noise and dynamically assigns a channel

It segregates devices from different manufactures onto different channels

It alternates automatically between 2.4 GHz and 5 GHz on adjacent access points

35 / 60

A network engineer must configure the router R1 GigabitEthernet1/1 interface to connect to the router R2 GigabitEthernet1/1 interface. For the configuration to be applied, the engineer must compress the address 2001:0db8:0000:0000:0500:000a:400F:583B. Which command must be issued on the interface?

ipv6 address 2001::db8:0000::500:a:400F:583B

ipv6 address 2001:db8::500:a:400F:583B

ipv6 address 2001:db8:0::500:a:4F:583B

ipv6 address 2001:0db8::5:a:4F:583B

36 / 60

Under which condition is TCP preferred over UDP?

UDP is used when low latency is optimal, and TCP is used when latency is tolerable.

TCP is used when dropped data is more acceptable, and UDP is used when data is accepted out-of-order

TCP is used when data reliability is critical, and UDP is used when missing packets are acceptable

UDP is used when data is highly interactive, and TCP is used when data is time-sensitive

37 / 60

An engineer observes high usage on the 2.4GHz channels and lower usage on the 5GHz channels. What must be configured to allow clients to preferentially use
5GHz access points?

Client Band Select

Re-Anchor Roamed Clients

OEAP Spilt Tunnel

11ac MU-MIMO

38 / 60

A manager asks a network engineer to advise which cloud service models are used so employees do not have to waste their time installing, managing, and updating software that is only used occasionally. Which cloud service model does the engineer recommend?

Business process as service to support different types of service

Software-as-a-service

Platform-as-a-service

Infrastructure-as-a-service

39 / 60

What is a recommended approach to avoid co-channel congestion while installing access points that use the 2.4 GHz frequency?

One nonoverlapping channel

Different overlapping channels

Different nonoverlapping channels

One overlapping channel

40 / 60

What is the primary function of a Layer 3 device?

To analyze traffic and drop unauthorized traffic from the Internet

To forward traffic within the same broadcast domain

To pass traffic between different networks

To transmit wireless traffic between hosts

41 / 60

Which function is performed by the collapsed core layer in a two-tier architecture?

Marking interesting traffic for data policies

Applying security policies

Enforcing routing policies

attaching users to the edge of the network

42 / 60

What is the same for both copper and fiber interfaces when using SFP modules?

They support an inline optical attenuator to enhance signal strength

They offer reliable bandwidth up to 100 Mbps in half duplex mode

They accommodate single-mode and multi-mode in a single module

They provide minimal interruption to services by being hot-swappable

43 / 60

What is the binary pattern of unique ipv6 unique local address?

11111100

00000000

11111101

11111111

44 / 60

Which WAN access technology is preferred for a small office / home office architecture?

Frame-relay packet switching

Broadband cable access

Dedicated point-to-point leased line

Integrated Services Digital Network switching

45 / 60

Which two statements about the purpose of the OSI model are accurate?

Defines the network functions that occur at each layer, Facilitates an understanding of how information travels throughout a network

Facilitates an understanding of how information travels throughout a network, Changes in one layer do not impact other layer

Ensures reliable data delivery through its layered approach, Changes in one layer do not impact other layer

Defines the network functions that occur at each layer, Ensures reliable data delivery through its layered approach

46 / 60

How do TCP and UDP differ in the way they guarantee packet delivery?

TCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only

TCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only

TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only

TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only

47 / 60

A device detects two stations transmitting frames at the same time. This condition occurs after the first 64 bytes of the frame is received. Which interface counter increments?

Runt

Collision

Late collision

CRC

48 / 60

An office has 8 floors with approximately 30-40 users per floor. One subnet must be used. Which command must be configured on the router Switched Virtual
Interface to use address space efficiently?

192.168.0.0 255.255.255.128

192.168.0.0 255.255.0.0

192.168.0.0 255.255.255.224

192.168.0.0 255.255.254.0

49 / 60

Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users to the network. Which IPv4 network and subnet mask combination does the engineer assign to minimize wasting addresses?

10.10.225.48 255.255.255.240

10.10.225.48 255.255.255.224

10.10.225.32 255.255.255.240

10.10.225.32 255.255.255.224

50 / 60

A corporate office uses four floors in a building.
- Floor 1 has 24 users.
- Floor 2 has 29 users.
- Floor 3 has 28 users.
- Floor 4 has 22 users.
Which subnet summarizes and gives the most efficient distribution of IP addresses for the router configuration?

192.168.0.0/25 as summary and 192.168.0.0/27 for each floor

192.168.0.0/23 as summary and 192.168.0.0/25 for each floor

192.168.0.0/24 as summary and 192.168.0.0/28 for each floor

192.168.0.0/26 as summary and 192.168.0.0/29 for each floor

51 / 60

Which action must be taken to assign a global unicast IPv6 address on an interface that is derived from the MAC address of that interface?

Explicitly assign a link-local address

Enable SLAAC on an interface

disable the EUI-64 bit process

configure a stateful DHCPv6 server on the network

52 / 60

Which function does the range of private IPv4 addresses perform?

provides a direct connection for hosts from outside of the enterprise network

allows multiple companies to each use the same addresses without conflicts

ensures that NAT is not required to reach the Internet with private range addressing

enables secure communications to the Internet for all external hosts

53 / 60

Which IPv6 address block forwards packets to a multicast address rather than a unicast address?

FE80::/10

FF00::/12

FC00::/7

2000::/3

54 / 60

How do TCP and UDP differ in the way they provide reliability for delivery of packets?

TCP provides flow control to avoid overwhelming a receiver by sending too many packets at once, UDP sends packets to the receiver in a continuous stream without checking.

TCP does not guarantee delivery or error checking to ensure that there is no corruption of data, UDP provides message acknowledgement and retransmits data if lost.

TCP is a connectionless protocol that does not provide reliable delivery of data; UDP is a connection-oriented protocol that uses sequencing to provide reliable delivery

TCP uses windowing to deliver packets reliably; UDP provides reliable message transfer between hosts by establishing a three-way handshake

55 / 60

Which action is taken by switch port enabled for PoE power classification override?

As power usage on a PoE switch port is checked, data flow to the connected device is temporarily paused

When a powered device begins drawing power from a PoE switch port, a syslog message is generated

If a switch determines that a device is using less than the minimum configured power, it assumes the device has failed and disconnects it

If a monitored port exceeds the maximum administrative value for power, the port is shutdown and err-disabled

56 / 60

What occurs to frames during the process of frame flooding?

Frames are sent to all ports, including those that are assigned to other VLANs

Frames are sent to every port on the switch that has a matching entry in MAC address table

Frames are sent to every port on the switch in the same VLAN

Frames are sent to every port on the switch in the same VLAN except from the originating port

57 / 60

Which network allows devices to communicate without the need to access the Internet?

172.28.0.0/16

172.9.0.0/16

209.165.201.0/24

192.0.0.0/8

58 / 60

What is a benefit of using a Cisco Wireless LAN Controller?

Central AP management requires more complex configurations

Unique SSIDs cannot use the same authentication method

It eliminates the need to configure each access point individually

It supports autonomous and lightweight APs

59 / 60

Which IPv6 address type provides communication between subnets and cannot route on the Internet?

unique local

multicast

link-local

global unicast

60 / 60

An engineer must configure a /30 subnet between two routes. Which usable IP address and subnet mask combination meets this criteria?

interface e0/0 description to XX-AXXX:XXXXX ip address 192.168.1.1 255.255.255.248

interface e0/0 description to XX-AXXX:XXXXX ip address 209.165.201.2 225.255.255.252

interface e0/0 description to XX-AXXX:XXXXX ip address 172.16.1.4 255.255.255.248

interface e0/0 description to XX-AXXX:XXXXX ip address 10.2.1.3 255.255.255.252

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