Question

Which two commands could be used to check if DNS name resolution is working properly on a Windows PC? (Choose two.)

nslookup cisco.com
net cisco.com
ping cisco.com
nbtstat cisco.com
ipconfig /flushdns

Question

What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC?

if the TCP/IP stack is functioning on the PC without putting traffic on the wire
if there is connectivity with the destination device
the path that traffic will take to reach the destination
what type of device is at the destination

Question

A Wireshark capture is shown with the Transmission Control Protocol section expanded. The item highlighted states Window size: 9017.

Refer to the exhibit. What does the value of the window size specify?

the amount of data that can be sent at one time
the total number of bits received during this TCP session
the amount of data that can be sent before an acknowledgment is required
a random number that is used in establishing a connection with the 3-way handshake

Question

A Wireshark capture is shown with the Transmission Control Protocol section expanded. The item highlighted states Window size: 9017.

checking the IP address on the network card
testing the integrity of the TCP/IP stack on the local machine
pinging a host computer that has the IP address 127.0.0.1 on the network
tracing the path to a host computer on the network and the network has the IP address 127.0.0.1

Question

Refer to the exhibit. What is the maximum possible throughput between the PC and the server?

128 kb/s
10 Mb/s
100 Mb/s
1000 Mb/s

Question

If the default gateway is configured incorrectly on the host, what is the impact on communications?

The host is unable to communicate on the local network.
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.
There is no impact on communications.

Question

Three devices are on three different subnets. Match the network address and the broadcast address with each subnet where these devices are located. Device 1: IP address 192.168.10.77/28 on subnet 1Device 2: IP address192.168.10.17/30 on subnet 2Device 3: IP address 192.168.10.35/29 on subnet 3

Subnet 1 network number → 192.168.10.64
Subnet 2 broadcast address → 192.168.10.19
Subnet 3 network number → 192.168.10.32
Subnet 1 broadcast address → 192.168.10.79
Subnet 2 network number → 192.168.10.16
Subnet 3 broadcast address → 192.168.10.39

Question

The employees and residents of Ciscoville cannot access the Internet or any remote web-based services. IT workers quickly determine that the city firewall is being flooded with so much traffic that a breakdown of connectivity to the Internet is occurring. Which type of attack is being launched at Ciscoville?

Trojan horse
reconnaissance
DoS
access

Question

A small advertising company has a web server that provides critical business service. The company connects to the Internet through a leased line service to an ISP. Which approach best provides cost effective redundancy for the Internet connection?

Add a second NIC to the web server.
Add another web server to prepare failover support.
Add a connection to the Internet via a DSL line to another ISP.
Add multiple connections between the switches and the edge router.

Question

A CLI output that says the following: Switch1> config t ^ % Invalid input detected at '^' marker. The ^ is under the "f" in the word "config"

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

The entire command, configure terminal, must be used.
The administrator is already in global configuration mode.
The administrator must first enter privileged EXEC mode before issuing the command.
The administrator must connect via the console port to access global configuration mode.

Question

Why is NAT not needed in IPv6?

Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.
Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.
The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.
The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet.

Question

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

data link
network
physical
session
transport

Question

Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)

router solicitation
route redirection
neighbor solicitation
protocol unreachable
router advertisement

Question

What does the IP address 192.168.1.15/29 represent?

subnetwork address
multicast address
unicast address
broadcast address

Question

The exhibit shows a network topology. PC1 and PC2are connected to the Fa0/1 and Fa0/2 ports of the SW1 switch, respectively. SW1 is connected through its Fa0/3 port to the Fa0/0 interface of the RT1 router. RT1 is connected through its Fa0/1 to the Fa0/2 port of SW2 switch. SW2 is connected through its Fa0/1 port to the PC3.

Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next?

RT1 will forward the ARP request to PC3.
RT1 will send an ARP reply with its own Fa0/0 MAC address.
RT1 will send an ARP reply with the PC3 MAC address.
SW1 will send an ARP reply with its Fa0/1 MAC address.
RT1 will send an ARP reply with its own Fa0/1 MAC address.

Question

Which two statements describe the characteristics of fiber-optic cabling? (Choose two.)

Fiber-optic cabling does not conduct electricity.
Fiber-optic cabling has high signal loss.
Fiber-optic cabling is primarily used as backbone cabling.
Multimode fiber-optic cabling carries signals from multiple sending devices.
Fiber-optic cabling uses LEDs for single-mode cables and laser technology for multimode cables.

Question

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?

the virtually unlimited availability of IPv6 addresses
the use of CSMA/CA
the use of full-duplex capable Layer 2 switches
the development of half-duplex switch operation
the use of Gigabit Ethernet speeds

Question

What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?

The switch places the new CRC value in the FCS field and forwards the frame.
The switch notifies the source of the bad frame.
The switch drops the frame.
The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.

Question

Which two acronyms represent the data link sublayers that Ethernet relies upon to operate? (Choose two.)

CSMA
FCS
LLC
MAC
SFD

Question

A network administrator is issuing the login block-for 180 attempts 2 within 30 command on a router. Which threat is the network administrator trying to prevent?

a user who is trying to guess a password to access the router
a worm that is attempting to access another part of the network
an unidentified individual who is trying to access the network equipment room
a device that is trying to inspect the traffic on a link

Question

Which two issues can cause both runts and giants in Ethernet networks? (Choose two.)

a malfunctioning NIC
CRC errors
electrical interference on serial interfaces
half-duplex operations
using the incorrect cable type

Question

Which statement describes the characteristics of packet-filtering and stateful firewalls as they relate to the OSI model?

Both stateful and packet-filtering firewalls can filter at the application layer.
A stateful firewall can filter application layer information, whereas a packet-filtering firewall cannot filter beyond the network layer.
A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter up to the session layer.
A packet-filtering firewall uses session layer information to track the state of a connection, whereas a stateful firewall uses application layer information to track the state of a connection.

Question

Match the description with the media.

STP → This type of copper media is used in industrial or similar environments where there is a lot of interference.
coaxial → Traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customer premises.
optical fiber → This type of media is used for high transmission speed and can also transfer data over long distances.
wireless → This type of media provides the most mobility options.

Question

What is a characteristic of a switch virtual interface (SVI)?

Although it is a virtual interface, it needs to have physical hardware on the device associated with it.
An SVI is created in software and requires a configured IP address and a subnet mask in order to provide remote access to the switch.
SVIs come preconfigured on Cisco switches.
SVIs do not require the no shutdown command to become enabled.

Question

Which destination address is used in an ARP request frame?

0.0.0.0
255.255.255.255
FFFF.FFFF.FFFF
AAAA.AAAA.AAAA
the physical address of the destination host

Question

$The graphic shows the output of the command netstat -r issued on a workstation: C:\Windows\system32> netstat -r <output omitted> IPv6 Route Table ======================================================= Active Routes: If Metric Network Destination Gateway 9 306 ::/0 On-link 1 306 ::1/128 On-link 9 306 2001::/32 On-link 9 306 2001:0:9d38:6ab8:30d0:115:3f57:fe4c/128 On-link 4 281 fe80::/64 On-link 9 306 fe80::/64 On-link 4 281 fe80::1c20:5d8b:4b44:bd40/128 On-link 9 306 fe80::30d0:115:3f57:fe4c/128 On-link 1 306 ff00::/8 On-link 4 281 ff00::/8 On-link 9 306 ff00::/8 On-link =======================================================$

Refer to the exhibit. A user issues the command netstat –r on a workstation. Which IPv6 address is one of the link-local addresses of the workstation?

::1/128
fe80::30d0:115:3f57:fe4c/128
fe80::/64
2001:0:9d38:6ab8:30d0:115:3f57:fe4c/128

Question

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

bits
frame
packet
segment

Question

Match the command with the device mode at which the command is entered.

service password-encryption → R1(config)#
enable → R1>
copy running-config startup-config → R1#
login → R1(config-line)#
ip address 192.168.4.4 255.255.255.0 → R1(config-if)#

Question

Match the descriptions to the terms.

users interact with the operating system by typing commands → CLI
enables the user to interact with the operating system by pointing and clicking → GUI
the part of the OS that interacts directly with the device hardware → kernel
the part of the operating system that interfaces with applications and the user → shell

Question

What routing table entry has a next hop address associated with a destination network?

directly-connected routes
local routes
remote routes
C and L source routes

Question

Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)

application
presentation
session
transport
data link
physical
network

Question

Two students are working on a network design project. One student is doing the drawing, while the other student is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used?

peer-to-peer
client-based
master-slave
point-to-point

Question

Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?

The switch will discard the frame.
The switch will forward the frame only to port 2.
The switch will forward the frame to all ports except port 4.
The switch will forward the frame to all ports.
The switch will forward the frame only to ports 1 and 3.

Question

Which command is used to manually query a DNS server to resolve a specific host name?

nslookup
ipconfig /displaydns
tracert
net

Question

A network team is comparing topologies for connecting on a shared media. Which physical topology is an example of a hybrid topology for a LAN?

bus
extended star
ring
partial mesh

Question

What are two ways to protect a computer from malware? (Choose two.)

Use antivirus software.
Empty the browser cache.
Keep software up to date.
Delete unused software.
Defragment the hard disk.

Question

What does a router do when it receives a Layer 2 frame over the network medium?

determines the best path
de-encapsulates the frame
re-encapsulates the packet into a new frame
forwards the new frame appropriate to the medium of that segment of the physical network

Question

A router boots and enters setup mode. What is the reason for this?

The IOS image is corrupt.
Cisco IOS is missing from flash memory.
The configuration file is missing from NVRAM.
The POST process has detected hardware failure.

Question

Two network engineers are discussing the methods used to forward frames through a switch. What is an important concept related to the cut-through method of switching?

The fragment-free switching offers the lowest level of latency.
Fast-forward switching can be viewed as a compromise between store-and-forward switching and fragment-free switching.
Fragment-free switching is the typical cut-through method of switching.
Packets can be relayed with errors when fast-forward switching is used.

Question

What OSI physical layer term describes the measure of the transfer of bits across a medium over a given period of time?

throughput
bandwidth
latency
goodput

Question

Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address?

destination IPv4 address
protocol
TTL
header checksum

Question

Floor(config)# interface gi0/1
Floor(config-if)# description Connects to the Registrar LAN
Floor(config-if)# ip address 192.168.235.234 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface gi0/0
Floor(config-if)# description Connects to the Manager LAN
Floor(config-if)# ip address 192.168.234.114 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/0
Floor(config-if)# description Connects to the ISP
Floor(config-if)# ip address 10.234.235.254 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/1
Floor(config-if)# description Connects to the Head Office WAN
Floor(config-if)# ip address 203.0.113.3 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# end

Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

192.168.235.234
192.168.235.1
10.234.235.254
203.0.113.3
192.168.234.114

Question

Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?

fe80::220:b3f:f0e0:29
fe80:9ea:0:2200::fe0:290
fe80:9ea0::2020:0:bf:e0:9290
fe80:9ea0::2020::bf:e0:9290

Question

Only employees connected to IPv6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv6 routing has been enabled. What is the best command to use to accomplish the task?

show running-config
show interfaces
copy running-config startup-config
show ip nat translations

Question

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

adds Ethernet control information to network protocol data
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
applies source and destination MAC addresses to Ethernet frame
implements CSMA/CD over legacy shared half-duplex media
integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper

Question

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?

SSH
DHCP
DNS
TFTP

Question

What service is provided by POP3?

Retrieves email from the server by downloading the email to the local mail application of the client.
Allows remote access to network devices and servers.
Uses encryption to provide secure remote access to network devices and servers.
An application that allows real-time chatting among remote users.

Question

What characteristic describes spyware?

software that is installed on a user device and collects information about the user
an attack that slows or crashes a device or network service
the use of stolen credentials to access private data
a network device that filters access and traffic coming into a network

Question

Which statement describes network security?

It ensures sensitive corporate data is available for authorized users.
It prioritizes data flows in order to give priority to delay-sensitive traffic.
It supports growth over time in accordance with approved network design procedures.
It synchronizes traffic flows using timestamps.

Question

Which two devices would be described as intermediary devices? (Choose two.)

wireless LAN controller
IPS
server
gaming console
retail scanner
assembly line robots

Question

What type of address is 198.133.219.162?

public
link-local
loopback
multicast

Question

Given network 172.18.109.0, which subnet mask would be used if 6 host bits were available?

255.255.255.192
255.255.255.252
255.255.224.0
255.255.255.248
255.255.192.0

Question

What type of IPv6 address is represented by ::1/128?

loopback
unspecified
global unicast
EUI-64 generated link-local

Question

Network information:
  * local router LAN interface: 172.19.29.254 / fe80:65ab:dcc1::10
  * local router WAN interface: 198.133.219.33 / 2001:db8:FACE:39::10
  * remote server: 192.135.250.103

What task might a user be trying to accomplish by using the ping 2001:db8:FACE:39::10 command?

verifying that there is connectivity to the internet
verifying that there is connectivity within the local network
creating a network performance benchmark to a server on the company intranet
determining the path to reach the remote server

Question

To which TCP port group does the port 414 belong?

registered
well-known
private or dynamic
public