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Worksheets452-530 (78 pt. 2) CISCO CCNA 1 exam preparation
Total questions: 77
Worksheet time: 41mins
What are two characteristics of the application layer of the TCP/IP model? (Choose two.)
the establishing of window size
the creation and maintenance of dialogue between source and destination applications
responsibility for logical addressing
responsibility for physical addressing
closest to the end user
Which three services are provided by the AAA framework? (Choose three.)
authentication
authorization
autoconfiguration
automation
accounting
Which command will block login attempts on RouterA for a period of 30 seconds if there are 2 failed login attempts within 10 seconds?
RouterA(config)# login block-for 30 attempts 10 within 2
RouterA(config)# login block-for 30 attempts 2 within 10
RouterA(config)# login block-for 10 attempts 2 within 30
RouterA(config)# login block-for 2 attempts 30 within 10
A network technician is investigating network connectivity from a PC to a remote host with the address 10.1.1.5. Which command, when issued on a Windows PC, will display the path to the remote host?
traceroute 10.1.1.5
tracert 10.1.1.5
trace 10.1.1.5
ping 10.1.1.5
Which element of scaling a network involves identifying the physical and logical topologies?
device inventory
network documentation
cost analysis
traffic analysis
Which factor must be considered when selecting network devices?
elasticity
color
console connections
cost
Which two traffic types require delay sensitive delivery? (Choose two.)
FTP
web
voice
video
What information about a Cisco router can be verified using the show version command?
the administrative distance used to reach networks
the routing protocol version that is enabled
the value of the configuration register
the operational status of serial interfaces
Which command must be used after assigning an IP address to an interface to make it active?
activate
enable interface
up
switchport enable
no shutdown
Why would a technician enter the command copy startup-config running-config?
to save an active configuration to NVRAM
to remove all configurations from the switch
to copy an existing configuration into RAM
to make a changed configuration the new startup configuration
Which password is used to protect access to privileged EXEC mode?
Username password
VTY password
Enable password / enable secret
Console password
Auxiliary line password
What is the primary role of an access point in a network?
To resolve hostnames to IP addresses
To provide wireless connectivity to end devices
To inspect traffic for malicious patterns
To assign static IP addresses
To forward packets between networks
What type of network must a home user access in order to do online shopping?
an intranet
the Internet
an extranet
a local area network
Which device operates primarily at Layer 2 of the OSI model and forwards frames based on MAC addresses?
Router
Switch
Gateway
Firewall
Hub
Given a /32 Global Routing Prefix and a /64 prefix, how many bits would be allocated for the Subnet ID?
48
8
16
64
32
Which layer of the OSI model is responsible for logical addressing and routing?
Application
Network
Transport
Session
Data Link
What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)
connector specifications
media selection
delivery options
message encoding
message size
Which OSI layer uses MAC addresses for communication?
Transport
Physical
Session
Data Link
Which protocol is connectionless and does not provide error recovery?
TCP
SMTP
FTP
UDP
HTTPS
Which of the following is NOT a function of the Application layer in the TCP/IP model?
Session management
Providing network services to end users
File transfer services
Physical addressing
Formatting data for transmission
What is the decimal equivalent of 0xC9?
199
201
200
185
Which IPv4 address format was created for ease of use by people and is expressed as 201.192.1.14?
hexadecimal
ASCII
dotted decimal
Binary
Which two statements describe the services provided by the data link layer? (Choose two.)
It manages the access of frames to the network media.
It provides reliable delivery through link establishment and flow control.
It maintains the path between the source and destination devices during the data transmission.
It ensures that application data will be transmitted according to the prioritization.
Which media access control method is used in legacy Ethernet LANs?
Carrier sense multiple access/collusion annoyance
Carrier sense multiple access/collusion detection
Carrier sense multiple access/collusion destruction
Carrier sense multiple access/collusion avoidance
Which three basic parts are common to all frame types supported by the data link layer? (Choose three.)
MTU size
data
trailer
header
CRC
Which duplex communication method is used in WLANs?
Simplex
Full-duplex
Half-duplex
What routing table entry has a next hop address associated with a destination network?
local routes
directly-connected routes
remote routes
C and L source routes
Within a production network, what is the purpose of configuring a switch with a default gateway address?
It provides a next-hop address for all traffic that flows through the switch.
A switch must have a default gateway to be accessible by Telnet and SSH.
Hosts that are connected to the switch can use the switch default gateway address to forward packets to a remote destination.
The default gateway address is used to forward packets originating from the switch to remote networks.
Which three protocols or standards are used at the application layer of the TCP/IP model? (Choose three.)
HTTP
UDP
TCP
GIF
MPEG
Which TCP/IP model layer is closest to the end user?
internet
application
transport
access
network
Which application layer protocol uses message types such as GET, PUT, and POST?
POP3
SMTP
DNS
DHCP
HTTP
True of False? In FTP transactions, an FTP client uses the pull method to download files from an FTP server.
true
false
A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?
master-slave
point-to-point
peer-to-peer (P2P)
client-based
On a home network, which device is most likely to provide dynamic IP addressing to clients on the home network?
a DNS server
a dedicated file server
an ISP DHCP server
a home router
Which component is designed to protect against unauthorized communications to and from a computer?
port scanner
security
center
firewall
antivirus
What kind of threat is described when a threat actor steals scientific research data?
disruption of service
information theft
identify theft
data loss or manipulation
What is the role of an IPS?
connecting global threat information to Cisco network security devices
detecting and blocking of attacks in real time
filtering of nefarious websites
authenticating and validating traffic
A network administrator establishes a connection to a switch via SSH. What characteristic uniquely describes the SSH connection?
out-of-band access to a switch through the use of a virtual terminal with password authentication
on-site access to a switch through the use of a directly connected PC and a console cable
remote access to a switch where data is encrypted during the session
remote access to the switch through the use of a telephone dialup connection
direct access to the switch through the use of a terminal emulation program
Which type of network threat is intended to prevent authorized users from accessing resources?
DoS attacks
access attacks
reconnaissance attacks
trust exploitation
Which device is used by other network devices to authenticate and authorize management access?
IPS
AAA Server
ESA/WSA
firewall
A user is redesigning a network for a small company and wants to ensure security at a reasonable price. The user deploys a new application-aware firewall with intrusion detection capabilities on the ISP connection. The user installs a second firewall to separate the company network from the public network. Additionally, the user installs an IPS on the internal network of the company. What approach is the user implementing?
layered
structured
attack based
risk based
Which network design consideration would be more important to a large corporation than to a small business?
Internet router
firewall
low port density switch
redundancy
Which elements are required to scale to a larger network? (Choose two.)
device configurations
windows hosts
network documentation
budget
increased bandwidth
Which command encrypts all plaintext passwords in the configuration file?
service encryption
enable password encrypt
service password-encryption
enable secret
password hidden
Which functionality is provided by DHCP?
automatic assignment of an IP address to each host
translation of IP addresses to domain names
remote switch management
end-to-end connectivity test
Which of the following is the name for all computers connected to a network that participate directly in network communication?
Hosts
Intermediary devices
Copper
Servers
Media
Which function is provided by the Presentation layer of the OSI model?
Data encryption and compression
Path determination
Error detection
Logical addressing
Port numbering
Which type of UTP cable is used to connect a PC to a switch port?
rollover
console
crossover
straight-through
Which connector type is commonly used for Ethernet UTP cables?
RJ-11
BNC
RJ-45
SC
LC
A network administrator is connecting two modern switches using a straight-through cable. The switches are new and have never been configured. Which three statements are correct about the final result of the connection? (Choose three.)
The connection will not be possible unless the administrator changes the cable to a crossover cable.
The link between the switches will work at the fastest speed that is supported by both switches.
If both switches support different speeds, they will each work at their own fastest speed.
The link between switches will work as full-duplex.
The auto-MDIX feature will configure the interfaces eliminating the need for a crossover cable.
What statement describes the function of the Address Resolution Protocol?
ARP is used to discover the MAC address of any host on a different network.
ARP is used to discover the IP address of any host on a different network.
ARP is used to discover the IP address of any host on the local network.
ARP is used to discover the MAC address of any host on the local network.
No guarantee that all packets that are delivered are, in fact, received:
Flow Control
Conversation Multiplexing
Reliable Delivery
Best Effort Delivery
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?
client-based
point-to-point
master-slave
peer-to-peer
What is an example of network communication that uses the client-server model?
A user prints a document by using a printer that is attached to a workstation of a coworker.
A workstation initiates a DNS request when the user types www.cisco.com in the address bar of a web browser.
A user uses eMule to download a file that is shared by a friend after the file location is determined.
A workstation initiates an ARP to find the MAC address of a receiving host.
Sharon, an IT intern at ACME Inc., noticed some strange packets while revising the security logs generated by the firewall. A handful of IP addresses on the internet were sending malformed packets to several different IP addresses, at several different random port numbers inside ACME Inc. What type of attack is described in this scenario?
reconnaissance attack
malware attack
denial of service (DoS) attack
access attack
Angela, an IT staff member at ACME Inc., notices that communication with the company’s web server is very slow. After investigating, she determines that the cause of the slow response is a computer on the internet sending a very large number of malformed web requests to ACME’S web server. What type of attack is described in this scenario?
reconnaissance attack
malware attack
access attack
denial of service (DoS) attack
For security reasons a network administrator needs to ensure that local computers cannot ping each other. Which settings can accomplish this task?
firewall settings
MAC address settings
smartcard settings
file system settings
Jeremiah was browsing the internet from his personal computer when a random website offered a free program to clean his system. After the executable was downloaded and running, the operating system crashed. Crucial operating system related files had been corrupted and Jeremiah’s computer required a full disk format and operating system re-installation. What type of attack is described in this scenario?
denial of service (DoS) attack
reconnaissance attack
access attack
malware attack
Where are Cisco IOS debug output messages sent by default?
vty lines
Syslog server
console line
memory buffers
Which layer of the OSI model defines services to segment and reassemble data for individual communications between end devices?
presentation
transport
application
network
session
What is done to an IP packet before it is transmitted over the physical medium?
It is encapsulated into a TCP segment.
It is tagged with information guaranteeing reliable delivery.
It is segmented into smaller individual pieces.
It is encapsulated in a Layer 2 frame.
What is one advantage of using fiber optic cabling rather than copper cabling?
It is easier to terminate and install than copper cabling.
It is usually cheaper than copper cabling.
It is able to be installed around sharp bends.
It is able to carry signals much farther than copper cabling.
Which is a multicast MAC address?
FF-FF-FF-FF-FF-FF
01-00-5E-00-00-03
5C-26-0A-4B-19-3E
00-26-0F-4B-00-3E
What property of ARP causes the NICs receiving an ARP request to pass the data portion of the Ethernet frame to the ARP process?
The type field 0x806 appears in the header of the Ethernet frame.
ARP replies are broadcast on the network when a host receives an ARP request.
Entries in an ARP table are time-stamped and are purged after the timeout expires.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
A manufacturing company subscribes to certain hosted services from its ISP. The services that are required include hosted world wide web, file transfer, and e-mail. Which protocols represent these three key applications? (Choose three.)
DHCP
SMTP
SNMP
FTP
HTTP
What is the role of an IPS?
detecting and blocking of attacks in real time
authenticating and validating traffic
connecting global threat information to Cisco network security devices
filtering of nefarious websites
What kind of threat is described when a threat actor sends you a virus that can reformat your hard drive?
data loss or manipulation
information theft
disruption of service
identify theft
What kind of threat is described when a threat actor overloads a network to deny other users network access?
information theft
disruption of service
identify theft
data loss or manipulation
What is the purpose of the network security authentication function?
to determine which resources a user can access
to provide challenge and response questions
to require users to prove who they are
to keep track of the actions of a user
A newly hired network technician is given the task of ordering new hardware for a small business with a large growth forecast. Which primary factor should the technician be concerned with when choosing the new devices?
redundant devices
devices that have support for network monitoring
devices with support for modularity
devices with a fixed number and type of interfaces
A technician is using the debug ip icmp privileged EXEC command to capture live router output. Which commands would stop this debug command on a Cisco router? (Choose two.)
undebug debug ip icmp
debug ip icmp off
no debug ip icmp
no debug debug ip icmp
undebug all
Which statement is true about the running configuration file in a Cisco IOS device?
It should be deleted using the erase running-config command.
It is stored in NVRAM.
It is automatically saved when the router reboots.
It affects the operation of the device immediately when modified.
A router with a valid operating system contains a configuration file stored in NVRAM. The configuration file has an enable secret password but no console password. When the router boots up, which mode will display?
global configuration mode
privileged EXEC mode
setup mode
user EXEC mode
102. What property of ARP allows hosts on a LAN to send traffic to remote networks?
ARP requests are broadcast to the remote network's DNS server to resolve IP-to-MAC mappings.
Local hosts learn the MAC address of the default gateway.
The source host uses ARP to discover the hardware address of the destination host's public IP.
ARP encapsulates the IP packet into a frame using the MAC address of the destination's remote interface.
114. What is the IPv4 packet header field that contains a 4-bit binary value set to 0100?
Version
IHL (Internet Header Length)
Differentiated Services (DS) Field
Flags
Which protocol can be used to transfer messages from an email server to an email client?
POP3
SMTP
IMAP4
SNMP
Which command can be used to test connectivity between two devices using echo request and echo reply messages?
ping
ICMP
ipconfig
netstat
