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Worksheets374-452 (78 pt. 1) CISCO CCNA 1 exam preparation
Total questions: 78
Worksheet time: 42mins
Which two devices are intermediary devices? (Choose two)
Switches
Hosts
Servers
Routers
During a routine inspection, a technician discovered that software that was installed on a computer was secretly collecting data about websites that were visited by users of the computer. Which type of threat is affecting this computer?
spyware
identity theft
DoS attack
zero-day attack
Which type of network infrastructure connects devices in a limited geographic area, such as a school or office building?
WAN
MAN
Extranet
VPN
LAN
Which characteristic of a scalable network is MOST important for supporting growth?
Can expand without major redesign
Uses only wireless media
Requires constant manual reconfiguration
Prevents use of IPv6
Has a fixed addressing scheme
Which type of network covers a large geographical area, often a country or continent?
WAN
SAN
MAN
LAN
PAN
What is an ISP?
It is a standards body that develops cabling and wiring standards for networking.
It is an organization that enables individuals and businesses to connect to the Internet.
It is a protocol that establishes how computers within a local network communicate.
It is a networking device that combines the functionality of several different networking devices in one.
A large corporation has modified its network to allow users to access network resources from their personal laptops and smart phones. Which networking trend does this describe?
cloud computing
video conferencing
bring your own device
online collaboration
An employee wants to access the network of the organization remotely, in the safest possible way. What network feature would allow an employee to gain secure remote access to a company network?
IPS
VPN
SSH
ACL
BYOD
Which of the following techniques use native IPv6 connectivity?
All of the above
Dual stack
Translation
Tunneling
What are the two methods a device can use to generate its own IPv6 interface ID?
SLAAC
Stateless DHCPv6
Randomly generated
EUI-64
Stateful DHCPv6
A technician is troubleshooting a network where it is suspected that a defective node in the network path is causing packets to be dropped. The technician only has the IP address of the end point device and does not have any details of the intermediate devices. What command can the technician use to identify the faulty node?
Tracert
Ping
Ipconfig/flushdns
Ipconfig/displaydns
Which of the following is an example of a Layer 7 protocol?
IP
HTTP
TCP
Ethernet
ARP
What type of delivery uses data link layer addresses?
local and remote delivery
local delivery
remote delivery using routers
remote delivery
Which three acronyms/initialisms represent standards organizations? (Choose three.)
TCP/IP
OSI
IANA
IEEE
IETF
Which protocol provides connection-oriented communication with guaranteed delivery?
IP
ARP
ICMP
UDP
TCP
Which OSI layer provides reliable end-to-end delivery using acknowledgments and retransmissions?
Transport
Data Link
Physical
Presentation
Session
What process is used to place one message inside another message for transfer from the source to the destination?
access control
decoding
flow control
encapsulation
Which term describes the process of breaking down data into smaller pieces for transmission?
Translation
Segmentation
Encapsulation
Synchronization
Multiplexing
Which two components are typically found in a fiber-optic link? (Choose two.)
RJ-45 connector
Electrical amplifier
Photo detector
Light source
Copper conductor
A wireless LAN is being deployed inside the new one room office that is occupied by the park ranger. The office is located at the highest part of the national park. After network testing is complete, the technicians report that the wireless LAN signal is occasionally affected by some type of interference. What is a possible cause of the signal distortion? (Choose two.)
the elevated location where the wireless LAN was installed
the cellular phones that are used by the employees
the number of wireless devices that are used in the wireless LAN
the microwave oven
the large number of trees that surround the office
Given the binary address of 11000000.10101000.01000001.00100110, which address does this represent in dotted decimal format?
192.168.64.36
194.168.67.36
192.168.65.38
192.165.67.38
194.165.65.36
Which organization defines standards for the network access layer (i.e., the OSI physical and data link layers)?
IETF
IANA
IEEE
Cisco
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
fragment-free switching
fast-forward switching
cut-through switching
store-and-forward switching
What IPv4 header field identifies the upper layer protocol carried in the packet?
Protocol
Version
Identification
Differentiated Services
When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?
Traffic Class
Next Header
Differentiated Services
Flow Label
What property of ARP forces all Ethernet NICs to process an ARP request?
The type field 0x806 appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The source MAC address appears in the header of the Ethernet frame.
ARP replies are broadcast on the network when a host receives an ARP request.
What property of ARP allows MAC addresses of frequently used servers to be fixed in the ARP table?
A static IP-to-MAC address entry can be entered manually into an ARP table.
The source MAC address appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.
From the given below, which is not a responsibility of Transport Layer?
Identifying the Applications
Tracking Individual Conversations
Establishing a permanent communication session
Segmenting Data and Reassembling Segments
According to the Internet Assigned Numbers Authority (IANA), how many types of ports exists?
5
2
3
4
What is the name of process when multiple applications can use the network at the same time?
Multiconversation
Conversation Multitasking
Conversation Multiplication
Conversation Multiplexing
What kind of control flag in a segment header must be sent to end a TCP session?
FINAL
STOP
FIN
STP
What type of information is contained in a DNS MX record?
the domain name mapped to mail exchange servers
the IP address of an authoritative name server
the FQDN of the alias used to identify a service
the IP address for an FQDN entry
Which application layer protocol is used to provide file-sharing and print services to Microsoft applications?
SMTP
HTTP
SMB
DHCP
What do the client/server and peer-to-peer network models have in common?
Both models are used only in the wired network environment.
Both models have dedicated servers.
Both models support devices in server and client roles.
Both models require the use of TCP/IP-based protocols.
When applied to a router, which command would help mitigate brute-force password attacks against the router?
banner motd $Max failed logins = 5$
exec-timeout 30
service password-encryption
login block-for 60 attempts 5 within 60
What is one of the most effective security tools available for protecting users from external threats?
router that run AAA services
patch servers
password encryption techniques
firewalls
What kind of threat is described when a threat actor makes illegal online purchases using stolen credit information?
data loss or manipulation
disruption of service
information theft
identify theft
Which attack involves a compromise of data that occurs between two end points?
denial-of-service
extraction of security parameters
man-in-the-middle attack
username enumeration
What kind of threat is described when a threat actor prevents legal users from accessing data services?
disruption of service
data loss or manipulation
information theft
identify theft
What is the difference between a virus and a worm?
Worms require a host file but viruses do not.
Viruses hide in legitimate programs but worms do not.
Worms self-replicate but viruses do not.
Viruses self-replicate but worms do not.
Which type of attack involves an adversary attempting to gather information about a network to identify vulnerabilities?
DoS
dictionary
reconnaissance
man-in-the-middle
What is the purpose of a small company using a protocol analyzer utility to capture network traffic on the network segments where the company is considering a network upgrade?
to document and analyze network traffic requirements on each network segment
to capture the Internet connection bandwidth requirement
to identify the source and destination of local network traffic
to establish a baseline for security analysis after the network is upgraded
Which statement is true about CDP on a Cisco device?
To disable CDP globally, the no cdp enable command in interface configuration mode must be used.
CDP can be disabled globally or on a specific interface .
Because it runs at the data link layer , the CDP protocol can only be implemented in switches.
The show cdp neighbor detail command will reveal the IP address of a neighbor only if there is Layer 3 connectivity .
Which statement correctly relates to a small network?
Small networks are complex.
Small networks require an IT department to maintain.
The majority of businesses are small.
A network technician issues the C:\> tracert -6 www.cisco.com command on a Windows PC. What is the purpose of the -6 command option?
It limits the trace to only 6 hops.
It sends 6 probes within each TTL time period.
It sets a 6 milliseconds timeout for each replay.
It forces the trace to use IPv6.
A technician is troubleshooting a network problem and has just established a theory of probable causes. What would be the next step in the troubleshooting process?
Identify the problem.
Verify solution and implement preventive measures.
Document findings, actions, and outcomes.
Test the theory to determine cause.
Establish a plan of action and implement the solution.
Which type of password takes precedence if both enable password and enable secret are set?
console password
enable secret
VTY password
enable password
service password-encryption
Which two modes must you enter before configuring a switch hostname? (Choose two.)
User EXEC
Privileged EXEC
Global Configuration
ROMMON
Interface Configuration
Which command erases the startup configuration on a switch?
delete config
erase startup-config
erase running-config
reset switch-config
clear running
Which command assigns an IP address to a switch SVI (VLAN 1 interface)?
vlan ip set 192.168.1.2
interface vlan ip 192.168.1.2 255.255.255.0
assign ip 192.168.1.2 255.255.255.0
set ip address 192.168.1.2 255.255.255.0
ip address 192.168.1.2 255.255.255.0
Which term refers to a network that provides secure access to the corporate offices by suppliers, customers and collaborators?
extranet
extendednet
intranet
Internet
Which of the following is NOT typically a benefit of a converged network?
Unified communication
Simplified management
Separate physical cabling for each traffic type
Efficient use of bandwidth
Reduced infrastructure costs
Which feature of a fault-tolerant network ensures minimal interruption when a device fails?
Redundant paths and devices
Single point of failure
VLAN segmentation
Load balancing
Encrypted data
Which network feature is designed to protect data confidentiality during transmission?
NAT
DNS
Encryption
ACL
VLAN tagging
What is the most important motivating factor for moving to IPv6?
IPv6 addresses that are easier to work with
Better performance with IPv6
Depletion of IPv4 addresses
Better security with IPv6
Which symbol will be displayed to indicate that an ICMP message of unreachability was received?
.
!
U
$
Which protocol is used to resolve IPv4 addresses to MAC addresses?
DNS
ARP
ICMP
NTP
DHCP
What are two benefits of using a layered network model? (Choose two.)
It assists in protocol design.
It prevents designers from creating their own model.
It ensures a device at one layer can function at the next higher layer.
It prevents technology in one layer from affecting other layers.
It speeds up packet delivery.
Which two protocols function at the internet layer? (Choose two.)
BOOTP
PPP
ICMP
POP
IP
Which layer of the OSI model establishes, manages, and terminates sessions between applications?
Application
Session
Presentation
Transport
Network
Which TCP/IP layer is responsible for determining the best path through a network?
Data Link
Application
Network Access
Internet
Transport
Which of the following is a benefit of fiber-optic cabling over copper cabling?
Supports only short distances
Cheaper to install
Easier to terminate
Resistant to electromagnetic interference (EMI)
More flexible for patch panels
Which cable type is most commonly used for Ethernet LAN connections?
Coaxial
Shielded twisted-pair (STP)
Serial
Unshielded twisted-pair (UTP)
Fiber optic
Which characteristic describes crosstalk?
It is able to carry signals much farther than copper cabling.
It is usually cheaper than copper cabling.
It is able to be installed around sharp bends.
It is easier to terminate and install than copper cabling.
Which procedure is used to reduce the effect of crosstalk in copper cables?
wrapping the bundle of wires with metallic shielding
avoiding sharp bends during installation
requiring proper grounding connections
designing a cable infrastructure to avoid crosstalk interference
twisting opposing circuit wire pairs together
Which statement best describes the purpose of the Physical layer of the OSI model?
It handles logical addressing.
It transmits raw bits across the physical medium.
It provides reliable end-to-end delivery.
It defines IP addressing and routing.
It formats data for applications.
What are three ways that media access control is used in networking? (Choose three.)
802.11 utilizes CSMA/CD.
Ethernet utilizes CSMA/CD.
Media access control provides placement of data frames onto the media
Data link layer protocols define the rules for access to different media.
Networks with controlled access have reduced performance due to data collisions.
Which two fields or features does Ethernet examine to determine if a received frame is passed to the data link layer or discarded by the NIC? (Choose two.)
minimum frame size
Frame Check Sequence
CEF
source MAC address
auto-MDIX
How do hosts ensure that their packets are directed to the correct network destination?
They search in their own local routing table for a route to the network destination address and pass this information to the default gateway.
They have to keep their own local routing table that contains a route to the loopback interface, a local network route, and a remote default route.
They send a query packet to the default gateway asking for the best route.
They always direct their packets to the default gateway, which will be responsible for the packet delivery.
What is one advantage that the IPv6 simplified header offers over IPv4?
efficient packet handling
smaller-sized header
little requirement for processing checksums
smaller-sized source and destination IP addresses
What is a basic characteristic of the IP protocol?
reliable end-to-end delivery
media dependent
user data segmentation
connectionless
What property of ARP causes a reply only to the source sending an ARP request?
ARP replies are broadcast on the network when a host receives an ARP request.
The type field 0x806 appears in the header of the Ethernet frame.
The source MAC address appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)
The frame has the broadcast address as the destination address.
The destination address in the frame is a known unicast address.
The source address in the frame is a multicast address.
The source address in the frame header is the broadcast address.
The destination address is unknown to the switch.
What is a socket?
The combination of the source IP address and the destination IP address
The combination of the destination IP address and the source port number
The combination of the source IP address and the destination port number
The combination of the source IP address and the source port number
Ensuring that each segment that the source sends arrives at the destination:
Conversation Multiplexing
Flow Control
Reliable Delivery
Best Effort Delivery
What is ISN?
Internal Security Number
Initial Session Number
Internal Sequence Number
Initial Sequence Number
Why is DHCP preferred for use on large networks?
Hosts on large networks require more IP addressing configuration settings than hosts on small networks.
It is a more efficient way to manage IP addresses than static address assignment.
Large networks send more requests for domain to IP address resolution than do smaller networks.
DHCP uses a reliable transport layer protocol.
It prevents sharing of files that are copyrighted.
What part of the URL, [http://www.cisco.com/index.html](http://www.cisco.com/index.html), represents the top-level DNS domain?
index
http
.com
www
