CCNA Practice Exam 4 - MCQs

Google ADs

Which multicast address does OSPF use to send hello packets?

224.0.0.5

224.0.0.18

224.4.0.4

224.0.0.0

Which of the following is an addressing type that is assigned to network interfaces for communications on the physical network segment?

Bridge ID

MAC address

Router ID

IP address

The Cisco Catalyst 1900 switches support which three LAN switch types? [Select 2].

Store-and-Forward

FastForward

InstaSwitch

FragmentForward

What is the alternative notation for the IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?

B514 : 82C3 :: 0029 : EC7A : 0 : EC72

B514 : 82C3 : 0029 :: EC7A : 0000 : EC72

B514 : 82C3 :: 0029 : EC7A : EC72

B514 : 82C3 : 0029 : EC7A : EC72

The wireless network is using controller-based APs and version 7.0 MR1. The APs appear to be connected properly to the controllers. A wireless user near one of the APs reports that they are unable to connect to the network with their pre-shared key. Which option shows the GUI path where you can check the connection status of that client?

Monitor > Clients

WLANs > WLAN_ID > Advanced

Security > Advanced > Clients

Wireless > 802.11b/g/n > Clients

Which option is a desirable feature of using symmetric encryption algorithms?

They offer simple key management properties.

They are best used for one-time encryption needs.

They are based on complex mathematical operations and can easily be accelerated by hardware.

They are often used for wire-speed encryption in data networks.

In a Cisco UCM single-site deployment, what is the maximum number of IP phones that can register with a UCM cluster?

30,000

10,000

7,500

2,500

On Cisco IOS XR, for which purpose is the turboboot procedure used?

To perform an ISSU

To install and boot up a PIE

To boot the router into ROM Monitor mode

To install the IOS XR software from scratch using the ROM Monitor mode

When deploying 10BASE-2 Ethernet, what is the maximum cable length?

185 meters

150 meters

A
185 feet

A
100 feet

The ROUTE Company has a small network. The network consists of one switch and one router. The switch has been configured with two VLANs. The router has been configured as a router-on- a-stick to allow inter- VLAN routing. A trunk is configured to connect the switch to the router. What is the minimum number of router subinterfaces that are required for all the VLANs to communicate?

Which of the following about an infrastructure basic service set is true according to IEEE 802.11 specifications?

No signals are relayed from one client to another client.

The set enables the use of ESS.

The BSSID is generated from the first wireless client that starts up in the IBSS.

The set also is called an ad hoc network.

Which option is a key principle of the Cisco Self-Defending Network strategy?

Upper management is ultimately responsible for policy implementation.

Security is static and should prevent most known attacks on the network.

Integrate security throughout the existing infrastructure.

A
The self-defending network should be the key point of your security policy.

By default, how many failed attempts at signing into Cisco Unity Connection is a user allowed before their account is locked out?

No limit.

Which of the following about STP operations is true?

One root bridge exists per collision domain.

One root port is established per root bridge.

One root port exists per broadcast domain.

One designated port is defined per segment.

How many IP address ranges are specified in RFC 1918?

1 in Class A, 2 in Class B, and 4 in Class C

2 in Class A, 4 in Class B, and 8 in Class C

4 in Class A, 8 in Class B, and 16 in Class C

1 in Class A, 16 in Class B, and 256 in Class C

You are working in a data center environment and are assigned the address range 10.188.31.0/23. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each. Which IP address range meets these requirements?

10.188.31.0/26

10.188.31.0/27

10.188.31.0/28

10.188.31.0/29

Which method of encryption does the 802.11i standard use?

TKIP

AES/OCB

AES/ECB and AES/CCMP

AES/CCMP

AES/ECB

Which threats are the most serious?

Inside threats

Outside threats

A
Reconnaissance threats

Unknown threats

What device enables Call Admission Control in a CME environment?

Gatekeeper

Transcoder

Bridge

Gateway

Which of the following is true about SSH?

It is a TCP/IP transport layer protocol.

It is an OSI network layer protocol.

It uses TCP port number 22.

It uses UDP port 23.

What action does a switch take if the destination MAC address is unknown?

send gratuitous ARP on all ports and wait for reply before forwarding

discard frame

send ICMP unreachable message to source

flood packet on all ports

Which of these applications uses the IMAP protocol to transfer information between a server and a host?

FTP

Telnet

E-mail

Web browser

Which of the following topologies is used in Wide Area Networks (WANs)?

Token Ring

FDDI

SONET

CDDI

How does VLSM make IP addressing more efficient?

By creating subnets.

By allowing a routed system to include subnets of different mask lengths to suit requirements.

By decreasing the total number of IP addresses.

By increasing the total number of IP addresses.

Which layer in the Open Systems Interconnection (OSI) model enables coding and conversion functions for application layer data?

Session layer

Physical layer

Application layer

Presentation layer

What is the primary motivation for most attacks against networks today?

Financial

Curiosity

Theological

Political

Which type of Category 5 unshielded twisted-pair (UTP) cable is used to work as a trunk between two switches?

RJ-11 straight-through

RJ-45 straight-through

RJ-45 crossover

RJ-41 crossover

ARP spoofing attacks depend on the use of what message?

GARP

MAC

CDP updates

NTP

What type is not supported on Cisco routers?

Type I

Type II

Type III

Type IV

You are working with an Internet Service Provider (ISP) as network manager. A corporate client approaches you to lease a public IP subnet that can accommodate 250 users. You have assigned him the 192.25.27.0 subnet.

What subnet mask should be assigned to this IP address so that it can accommodate the number of users required by the corporate client?

255.255.255.0

255.255.255.128

255.255.255.224

255.255.255.252