WorksheetsСISCO PART #2
Total questions: 58
Worksheet time: 29mins
Name
Class
Date
1.
What happens when the transport input ssh command is entered on the switch vty lines?
a)
The SSH client on the switch is enabled.
b)
The switch requires a username/password combination for remote access.
c)
Communication between the switch and remote users is encrypted.
d)
The switch requires remote connections via a proprietary client software.
2.
A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this?
a)
DoS
b)
access
c)
reconnaissance
d)
Trojan horse
3.
What service is provided by HTTP?
a)
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
b)
Allows for data transfers between a client and a file server.
c)
An application that allows real-time chatting among remote users.
d)
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
4.
A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?
a)
FTP
b)
DHCP
c)
Telnet
d)
SSH
5.
What are two problems that can be caused by a large number of ARP request and reply messages? (Choose two.)
a)
Switches become overloaded because they concentrate all the traffic from the attached subnets.
b)
The ARP request is sent as a broadcast, and will flood the entire subnet.
c)
The network may become overloaded because ARP reply messages have a very large payload due to the 48-bit MAC address and 32-bit IP address that they contain.
d)
A large number of ARP request and reply messages may slow down the switching process, leading the switch to make many changes in its MAC table.
e)
All ARP request messages must be processed by all nodes on the local network.
6.
A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.)
a)
ping
b)
ipconfig
c)
nslookup
d)
netsh interface ipv6 show neighbor
e)
arp -a
7.
During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?
a)
analyze the destination IP address
b)
switch the packet to the directly connected interface
c)
look up the next-hop address for the packet
d)
discard the traffic after consulting the route table
8.
What characteristic describes antispyware?
a)
applications that protect end devices from becoming infected with malicious software
b)
a network device that filters access and traffic coming into a network
c)
software on a router that filters traffic based on IP addresses or applications
d)
a tunneling protocol that provides remote users with secure access into the network of an organization
9.
A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?
a)
Telnet
b)
AUX
c)
SSH
d)
Console
10.
What are the two most effective ways to defend against malware? (Choose two.)
a)
Update the operating system and other application software.
b)
Install and update antivirus software.
c)
Implement a VPN.
d)
Implement network firewalls.
e)
Implement RAID.
11.
Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall?
a)
brute-force attack
b)
Trojan horse
c)
DoS
d)
buffer overflow
12.
Which frame field is created by a source node and used by a destination node to ensure that a transmitted data signal has not been altered by interference, distortion, or signal loss?
a)
User Datagram Protocol field
b)
transport layer error check field
c)
flow control field
d)
frame check sequence field
e)
error correction process field
13.
A network administrator is adding a new LAN to a branch office. The new LAN must support 4 connected devices. What is the smallest network mask that the network administrator can use for the new network?
a)
255.255.255.248
b)
255.255.255.0
c)
255.255.255.128
d)
255.255.255.192
14.
What service is provided by POP3?
a)
Retrieves email from the server by downloading the email to the local mail application of the client.
b)
An application that allows real-time chatting among remote users.
c)
Allows remote access to network devices and servers.
d)
Uses encryption to provide secure remote access to network devices and servers.
15.
What two security solutions are most likely to be used only in a corporate environment? (Choose two.)
a)
antispyware
b)
virtual private networks
c)
intrusion prevention systems
d)
strong passwords
e)
antivirus software
16.
What characteristic describes antivirus software?
a)
applications that protect end devices from becoming infected with malicious software
b)
a network device that filters access and traffic coming into a network
c)
a tunneling protocol that provides remote users with secure access into the network of an organization
d)
software on a router that filters traffic based on IP addresses or applications
17.
What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network?
a)
It checks the value of the TTL field and if it is 0, it discards the packet and sends a Destination Unreachable message to the source host.
b)
It checks the value of the TTL field and if it is 100, it discards the packet and sends a Destination Unreachable message to the source host.
c)
It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.
d)
It increments the value of the TTL field by 1 and if the result is 100, it discards the packet and sends a Parameter Problem message to the source host.
18.
A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?
a)
DNS
b)
DHCP
c)
SMTP
d)
TFTP
19.
An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections? (Choose three.)
a)
Configure the IP domain name on the router.
b)
Generate the SSH keys.
c)
Enable inbound vty SSH sessions.
d)
Configure DNS on the router.
e)
Generate two-way pre-shared keys.
20.
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) кейс 1
a)
handles communication between upper layer networking software and Ethernet NIC hardware
b)
implements trailer with frame check sequence for error detection
c)
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
d)
implements a process to delimit fields within an Ethernet 2 frame
e)
adds Ethernet control information to network protocol data
21.
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) кейс 2
a)
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
b)
adds Ethernet control information to network protocol data
c)
responsible for internal structure of Ethernet frame
d)
enables IPv4 and IPv6 to utilize the same physical medium
e)
implements trailer with frame check sequence for error detection
22.
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) кейс 3
a)
integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper
b)
enables IPv4 and IPv6 to utilize the same physical medium
c)
handles communication between upper layer networking software and Ethernet NIC hardware
d)
adds Ethernet control information to network protocol data
e)
implements CSMA/CD over legacy shared half-duplex media
23.
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) кейс 4
a)
applies delimiting of Ethernet frame fields to synchronize communication between nodes
b)
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
c)
adds Ethernet control information to network protocol data
d)
implements trailer with frame check sequence for error detection
e)
handles communication between upper layer networking software and Ethernet NIC hardware
24.
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) кейс 5
a)
applies delimiting of Ethernet frame fields to synchronize communication between nodes
b)
applies source and destination MAC addresses to Ethernet frame
c)
places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame
d)
handles communication between upper layer networking software and Ethernet NIC hardware
e)
adds Ethernet control information to network protocol data
25.
An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?
a)
all IPv6 enabled devices on the local link
b)
all IPv6 DHCP servers
c)
all IPv6 enabled devices across the network
d)
all IPv6 configured routers on the local link
26.
What are the three parts of an IPv6 global unicast address? (Choose three.)
a)
subnet ID
b)
subnet mask
c)
broadcast address
d)
global routing prefix
e)
interface ID
27.
A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)
a)
interference
b)
security
c)
coverage area
d)
extensive cabling
e)
mobility options
28.
A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?
a)
Enter CTRL-Z at the privileged mode prompt.
b)
Exit global configuration mode.
c)
Power cycle the device.
d)
Reboot the device.
e)
Exit privileged EXEC mode and press Enter .
29.
What method is used to manage contention-based access on a wireless network?
a)
token passing
b)
CSMA/CA
c)
priority ordering
d)
CSMA/CD
30.
What is a function of the data link layer?
a)
provides the formatting of data
b)
provides end-to-end delivery of data between hosts
c)
provides delivery of data between two applications
d)
provides for the exchange of frames over a common local media
31.
What is the purpose of the TCP sliding window?
a)
to ensure that segments arrive in order at the destination
b)
to end communication when data transmission is complete
c)
to inform a source to retransmit data from a specific point forward
d)
to request that a source decrease the rate at which it transmits data
32.
What characteristic describes spyware?
a)
a network device that filters access and traffic coming into a network
b)
software that is installed on a user device and collects information about the user
c)
an attack that slows or crashes a device or network service
d)
the use of stolen credentials to access private data
33.
Which switching method drops frames that fail the FCS check?
a)
store-and-forward switching
b)
borderless switching
c)
ingress port buffering
d)
cut-through switching
34.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
a)
FEC0::/10
b)
FDEE::/7
c)
FE80::/10
d)
FF00::/8
35.
What service is provided by FTP?
a)
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
b)
An application that allows real-time chatting among remote users.
c)
Allows for data transfers between a client and a file server.
d)
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
36.
A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)
a)
DNS server
b)
source port number
c)
HTTP server
d)
source MAC address
e)
default gateway
37.
Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
a)
NAT introduces problems for some applications that require end-to-end connectivity.
b)
NAT provides a solution to slow down the IPv4 address depletion.
c)
NAT adds authentication capability to IPv4.
d)
NAT will impact negatively on switch performance.
e)
NAT improves packet handling.
38.
What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process?
a)
0C6F:65FF:FEC2:BDF8
b)
1E6F:65FF:FEC2:BDF8
c)
C16F:65FF:FEC2:BDF8
d)
106F:65FF:FEC2:BDF8
39.
Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next?
a)
SW1 will send an ARP reply with the SW1 Fa0/1 MAC address.
b)
SW1 will send an ARP reply with the PC2 MAC address.
c)
PC2 will send an ARP reply with the PC2 MAC address.
d)
RT1 will send an ARP reply with the RT1 Fa0/0 MAC address.
e)
RT1 will send an ARP reply with the PC2 MAC address.
40.
What service is provided by BOOTP?
a)
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
b)
Allows for data transfers between a client and a file server.
c)
Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.
d)
A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
41.
What characteristic describes adware?
a)
a network device that filters access and traffic coming into a network
b)
software that is installed on a user device and collects information about the user
c)
the use of stolen credentials to access private data
d)
an attack that slows or crashes a device or network service
42.
When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?
a)
cut-through
b)
store-and-forward
c)
fast-forward
d)
fragment-free
43.
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
a)
error detection
b)
frame delimiting
c)
accessing the media
d)
data encapsulation
e)
logical addressing
44.
Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)
a)
The switch can be remotely managed.
b)
One device is attached to a physical interface.
c)
The default SVI has been configured.
d)
Two physical interfaces have been configured.
e)
Passwords have been configured on the switch.
45.
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
a)
2001:DA48::/64
b)
2001:DA48:FC5::A4:/64
c)
2001:DA48:FC5:A4::/64
d)
2001::/64
46.
Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior?
a)
syslog records and messages
b)
the network performance baseline
c)
debug output and packet captures
d)
network configuration files
47.
How does the service password-encryption command enhance password security on Cisco routers and switches?
a)
It requires encrypted passwords to be used when connecting remotely to a router or switch with Telnet.
b)
It encrypts passwords that are stored in router or switch configuration files.
c)
It requires that a user type encrypted passwords to gain console access to a router or switch.
d)
It encrypts passwords as they are sent across the network.
48.
Which two statements are correct in a comparison of IPv4 and IPv6 packet headers? (Choose two.)
a)
The Source Address field name from IPv4 is kept in IPv6.
b)
The Version field from IPv4 is not kept in IPv6.
c)
The Destination Address field is new in IPv6.
d)
The Header Checksum field name from IPv4 is kept in IPv6.
e)
The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.
49.
A network administrator wants to have the same network mask for all networks at a particular small site. The site has the following networks and number of devices:
IP phones – 22 addresses
PCs – 20 addresses needed
Printers – 2 addresses needed
Scanners – 2 addresses needed
The network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. Which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks?
a)
255.255.255.224
b)
255.255.255.192
c)
255.255.255.252
d)
255.255.255.240
e)
255.255.255.248
50.
What characteristic describes identity theft?
a)
the use of stolen credentials to access private data
b)
software on a router that filters traffic based on IP addresses or applications
c)
software that identifies fast-spreading threats
d)
a tunneling protocol that provides remote users with secure access into the network of an organization
51.
A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network?
a)
255.255.255.240
b)
255.255.255.0
c)
255.255.255.248
d)
255.255.255.224
52.
What are three commonly followed standards for constructing and installing cabling? (Choose three.)
a)
cable lengths
b)
pinouts
c)
connector types
d)
cost per meter (foot)
e)
connector color
53.
Refer to the exhibit. What is wrong with the displayed termination?
a)
The woven copper braid should not have been removed.
b)
The wrong type of connector is being used.
c)
The untwisted length of each wire is too long.
d)
The wires are too thick for the connector that is used.
54.
A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting?
a)
IMAP
b)
FTP
c)
SSH
d)
Telnet
55.
What are two characteristics shared by TCP and UDP? (Choose two.)
a)
port numbering
b)
use of checksum
c)
default window size
d)
connectionless communication
e)
3-way handshake
56.
Refer to the exhibit. Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.)
a)
10.18.10.208/28
b)
10.18.10.224/28
c)
10.18.10.200/28
d)
10.18.10.240/27
e)
10.18.10.200/27
57.
A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?
a)
FTP
b)
LDAP
c)
SLP
d)
SNMP
58.
What attribute of a NIC would place it at the data link layer of the OSI model?
a)
attached Ethernet cable
b)
IP address
c)
MAC address
d)
RJ-45 port
e)
TCP/IP protocol stack
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