CCNA 1 Final Exam
Which domain name would be an example of a top-level domain?
.com
What are the three ranges of IP addresses that are reserved for internal private use?
10.0.0.0/8* / 172.16.0.0/12* / 192.168.0.0/16*
What is the binary representation of 0xCA?
11001010
Which three addresses are valid public addresses?
128.107.12.117 / 198.133.219.17 / 64.104.78.227
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
which has 40 devices?
192.168.10.128
What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?
2001:0:0:abcd::1
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
203.0.113.211
must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?
255.255.255.128
What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?
255.255.255.192
What single subnet mask would be appropriate to use for the three subnetworks?
255.255.255.240
How many usable IP addresses are available on the 192.168.1.0/27 network?
30
How many hosts are addressable on a network that has a mask of 255.255.255.248?
6
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
62
what are three characteristics of multicast transmission?
A single packet can be sent to a group of hosts/ Multicast transmission can be used by routers to exchange routing information / Routers will not forward multicast addresses in the range of 224.0.0.0 to 224.0.0.255
Which scenario describes a function provided by the transport layer?
A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.
What method is used to manage contention-based access on a wireless network?
CSMA/CA
A wireless host needs to request an IP address. What protocol would be used to process the request?
DHCP
A user is unable to reach the web site when typing http://www.cisco.com in a web browser, but can reach the same site by typing http://72.163.4.161. What is the issue?
DNS
What network service resolves the URL entered on a PC to the IP address of the destination server?
DNS
Which two protocols operate at the highest layer of the TCP/IP protocol stack?
DNS/ POP
regular phone lines. What ISP connection type should be used?
DSL
What is one difference between the client-server and peer-to-peer network models?
Every device in a peer-to-peer network can function as a client or a server
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
FE80::/10
What are two benefits of using a layered network model?
It assists in protocol design / It prevents technology in one layer from affecting other layers
What function does pressing the Tab key have when entering a command in IOS?
It completes the remainder of a partially typed word in a command
What purpose does NAT64 serve in IPv6?
It converts IPv6 packets into IPv4 packets.
What is an advantage to using a protocol that is defined by an open standard?
It encourages competition and promotes choices
What is the function of the shell in an OS?
It interfaces between the users and the kernel.
characteristic of the LLC sublayer?
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media
What is the purpose of the command ping ::1?
It tests the internal configuration of an IPv6 host
What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
It will discard the frame
What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?
MAC address
What is a benefit of using cloud computing in networking?
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?
SLAAC
accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
Segments are sent from the transport layer to the internet layer
What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
TCP
If the PC is taken off the network for repair, what happens to the IP address configuration?
The address is returned to the pool for reuse when the lease expires
A network technician is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?
The command is being entered from the wrong mode of operation.
Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on?
The frame has the broadcast address as the destination address/The destination address is unknown to the switch
running-config startup-config command. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted
what occurs at the data link layer for a PC connected to an Ethernet network?
The physical address is added
Which statement is true about variable-length subnet masking?
The size of each subnet may be different, depending on requirements.
two characteristics of Ethernet MAC addresses
They are globally unique/ They are expressed as 12 hexadecimal digits
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN 1
must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?
WAN
What is a characteristic of a fault tolerant network?
a network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure
Which connection provides a secure CLI session with encryption to a Cisco network device?
an SSH connection
Which connection provides a secure CLI session with encryption to a Cisco switch?
an SSH connection
Which situation would depict a possible latency issue?
an increase in host-to-host ping response times
If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?
audio conference, financial transactions, web page
How does quality of service help a network support a wide range of applications and services?
by providing mechanisms to manage congested network traffic
What is a characteristic of UTP cabling?
cancellation
Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers?
client/ server
Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?
client/server
Which two tasks are functions of the presentation layer?
compression / encryption
Where are Cisco IOS debug output messages sent by default?
console line
What are the three primary functions provided by Layer 2 data encapsulation?
data link layer addressing/ detection of errors through CRC calculations / delimiting groups of bits into frames
What addresses are mapped by ARP?
destination MAC address to a destination IPv4 address
What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?
destination and source port numbers
If a device receives an Ethernet frame of 60 bytes, what will it do?
drop the frame
Which switching method has the lowest level of latency?
fast-forward
What are two examples of the cut-through switching method?
fast-forward switching/ fragment-free switching
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
internet
At a minimum, which address is required on IPv6-enabled interfaces?
link-local
What type of IPv6 address is FE80::1?
link-local
When applied to a router, which command would help mitigate brute-force password attacks against the router?
login block-for 60 attempts 5 within 60
Which example of malicious code would be classified as a Trojan horse?
malware that was written to look like a video game
Which two OSI model layers have the same functionality as two layers of the TCP/IP model?
network/transport
two characteristics of fiber optic cable
not affected by EMI or RFI/ more expensive then UTP cabling
A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?
nslookup
When planning for network growth, where in the network should packet captures take place to assess network traffic?
on as many different network segments as possible
Which two functions are primary functions of a router?
packet forwarding/ path selection
Which topology provides high availability and connects some, but not all, remote sites?
partial mesh
In which layer of the OSI model is the error categorized?
physical layer
What are two characteristics shared by TCP and UDP?
prot numbering/ use of checksum
What is a key characteristic of the peer-to-peer networking model?
resource sharing without a dedicated server
Which two commands can be used on a Windows host to display the routing table?
route print/netstat -r
What are two services provided by the OSI network layer?
routing packets toward the destination/ encapsulating PDUs from the transport layer
Which name is assigned to the transport layer PDU?
segment
What is the process of dividing a data stream into smaller pieces before transmission?
segmentation
Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?
show interfaces
What is the TCP mechanism used in congestion avoidance?
sliding window
What information is added during encapsulation at OSI Layer 3?
source and destination IP address
Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests initiated from internal hosts?
stateful packet inspection
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
store-and-forward switching
Which type of UTP cable is used to connect a PC to a switch port?
straight-through
When IPv4 addressing is manually configured on a web server, which property of the IPv4 configuration identifies the network and host portion for an IPv4 address?
subnet mask
What source IP address does a router use by default when the traceroute command is issued?
the IP address of the outbound interface
The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput?
the amount of traffic that is currently crossing the network/ the type of traffic that is crossing the network / the latency that is created by the number of network devices that the data is crossing
Which information is used by the TCP/IP protocol stack in the PC to identify which of the three web browsers should receive the reply?
the destination port number
Why are port numbers included in the TCP header of a segment?
to enable a receiving host to forward the data to the appropriate application
What are two ways that TCP uses the sequence numbers in a segment?
to identify missing segments at the destination / to reassemble the segments at the remote location
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
to identify the network address of the destination network
An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
to interrupt the ping process
What is the function of the HTTP GET message?
to request an HTML page from a web server
What are two functions of NVRAM?
to retain contents when power is removed/ to store the startup configuration file
Which procedure is used to reduce the effect of crosstalk in copper cables?
twisting opposing circuit wire pairs together
What are two actions performed by a Cisco switch?
using the source MAC addresses of frames to build and maintain a MAC address table/ utilizing the MAC address table to forward frames via the destination MAC address
In what two situations would UDP be the preferred transport protocol over TCP?
when a faster delivery mechanism is needed / when applications do not need to guarantee delivery of the data
