Networks and Data Communications Mock Exam Questions
Static route
A manually-configured routing table entry is referred to as
DHCP
A network protocol providing an alternative solution to the manual allocation of IP addresses is known as:
a. Router
A network technician is able to connect the switches between two offices, but the offices cannot communicate with each other, as each office uses a different IP addressing scheme. Which of the following devices needs to be installed between the switches to allow communication? a. Router b. Bridge c. Hub d. Switch
Layer 7
A network technician is helping an end user who is working on a spreadsheet for a very important client. The client can see the ^le on the remote share but is not able to open the document to print it. This issue is associated with which of the following OSI layers?
a. Unicast
A type of network traffic intended for a single host identified by a unique IP address is referred to as: a. Unicast b. Anycast c. Broadcast d. Multicast
rollover cable RJ-45 to DB-9 connector terminal emulation software
ABC Company just purchased three new routers to start their company network. Which items are needed to establish a terminal session between a PC and the router for the initial configuration?
Stations can transmit at any time, Collisions exist
Contention based data-link protocols have which of the following attributes? (Choose 2)
a. Discover, Offer, Request, Acknowledge
DHCP is a four step process, in the correct order what are these 4 steps a. Discover, Offer, Request, Acknowledge b. Offer, Request, Acknowledge, Discover c. Acknowledge, Discover, Offer, Request d. Request, Acknowledge, Offer, Discover
7 collision domain, 1 broadcast domain.
How many collision and broadcast domain in the exhibit?
10 collision domain, 4 broadcast domain
How many collision and broadcast domains in the exhibit?
b. 62
How many host addresses are available on the 192.168.10.128/26 network? a. 60 b. 62 c. 64 d. 30 e. 32
True
In Packet switching, there will not be any dedicated connection between two hosts?
destination network address
In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?
1024 through 49151
What range are the Registered port types
172.16.192.160
One router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
Increases the reliability of network communications. Separate pieces of each message can travel across different paths to destination.
Packet Switching achieves the following (Choose 2)
Domain Name System
Port number 53 is used for which application layer services?
Cable length
Refer to exhibit, the network in the exhibit is wired with cat 5 cable and workstation "C" is unable to communicate with the network. What physical layer problem would cause the problem of workstation "C" not connecting to the network?
Prevent light loss.
Refer to the exhibit, what is the purpose of cladding in fiber optic cable?
1 Straight 2 Straight 3 Cross 4 Cross.
Refer to the exhibit, which of the following statements are true?
source MAC Fa0/1 on RouterB, source IP PC
Refer to the exhibit. A frame is being sent from the PC to the Laptop. Which source MAC and IP addresses will be included in the frame as it leaves Route rB? Choose two.
4
Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown?
192.168.1.126
Refer to the exhibit. What is the correct gateway address for PC0 based on the information in the graphic.
192.168.1.254
Refer to the exhibit. What is the correct gateway address for PC1 based on the information in the graphic?
a straight-through cable between the router and a switch straight-through cables between a switch and hosts on a LAN.
Several Ethernet hosts on a LAN need the gateway services of a Cisco 2500 series router. Which of the following would be needed to physically connect a router to all of the hosts on the LAN?
True
TCP is a connection-oriented protocol, whereas UDP is a connectionless protocol.
True
The Frame Check Sequence (FCS) is part of the trailer information? True or False
33rd Floor Site ID: 3F01:AA07:3907:1000::/52 Shipping Sub- Site ID: 3F01:AA07:3907:1120::/60 Purchasing Sub-Site ID: 3F01:AA07:3907:2110::/64 Sales Sub-Site ID: 3F01:AA07:3907:2111::/64
The ISP has given the company 3F01:AA07:3907::/48. Find the below IPv6 Subnet Address for the following: 33rd Floor Site ID: Shipping Sub- Site ID: Purchasing Sub-Site ID: Sales Sub-Site ID:
If a route for a packet cannot be found in the routing table, and a default route is present, that route will be used to forward the packet.
The default route in a routing table performs what function?
Increase Performance of Network, Increase Security
The network layer separates hosts into different networks to?
Adjacent-layer interaction
The process of HTTP asking TCP to send some data and making sure that it is received correctly is an example of what?
Data encapsulation
The process of a web server adding a TCP header to the contents of a web page, followed by adding an IP header and then adding a data-link header and trailer, is an example of what?
Directly connected networks, Remote networks
The routing table stores information about what?
Sydney(config-if)# no shutdown Sydney(config-if)# clock rate 56000 Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three)
w
There are 4 basic characteristics for networks in general to meet user expectations. What are these?
FTP
What application layer protocol is commonly used to support for file transfers between a client and a server?
It breaks network communication into smaller, more manageable parts., It makes learning networking easier to understand., It prevents changes in one layer from affecting other layers.
What are advantages of using the OSI Model? (Choose 3)
Coding and compression formats: GIF, JPG, TIF Encryption.
What are some of the Presentation Layer functionalities
Immunity to electromagnetic interference., Longer maximum cable length., Grater bandwidth potential
What are the advantages of using ^ber optic cable over copper cable? (Choose three)
b. It uses separate SYN and ACK messages to establish a connection. c. The connection is established before data is transmitted. e. It ensures that all data is transmitted and received by the remote device.
What are three characteristics of the TCP protocol?(Select 3 answers)
Ethernet Wireless protocols
What are two data-link protocols that use contention based access to the media?
Crossover.
What cable type would be used to connect computer directly to another computer?
Anycast
What does "one-to-nearest" addressing in IPv6?
Technique used to combine and send the multiple data streams over a single medium.
What is Multiplexing?
A route that is manually configured by a network administrator to provide a default path for traffic that does not match any other route in the routing table
What is a default static route?
A representation of the bits of a frame on the media in the form of signals
What is a primary purpose of the Physical layer in transmitting data on the network?
source port.
What is dynamically selected by the source host when forwarding data?
: Devices can send and receive at the same time
What is full-duplex communication?
The ability of a network to recover quickly from failures and outages
What is network high availability?
2001:db8:4001:4000::/52
What is the IPv6 Subnet assigned to building 4
255.0.0.0
What is the correct default subnet mask for the following address 126.123.23.1?
To receive incoming email messages and deliver them to the appropriate recipient mailbox
What is the function of MDA in email systems?
So different networks could communicate
What is the main reason the OSI model was created?
10101100.00011001.01000010.00000000
What is the network address of the host 172.25.67.99 /23 in binary?
A hub represent a collision domain , while a switch is a broadcast domain
What is the primary difference between a hub and a switch?
Application, presentation, session, transport, network, data link, physical
What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?
To connect devices between different network
What is the purpose of a default gateway?
To identify the network portion of an IP address
What is the purpose of a subnet mask?
is identical for all hosts in a broadcast domain varies in length depending on requirements of organisation is used to forward packets by the router
What three facts are true about the network portion of an IPv4 address? a. is altered as packet is forwarded b. uses flat addressing c. varies in length depending on requirements of organisation d. identifies an individual device e. is identical for all hosts in a broadcast domain f. is used to forward packets by the router
DNS., SMTP., POP.
What three protocols operate at the Application layer of the OSI model? (Choose three.)
Transport
Which OSI layer encapsulates the data into segments?
Physical
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Physical.
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Quality of Service (QoS).
Which characteristic is responsible for ensure that priorities are matched with type of communication and its importance to the organization?
Router(config-line)#line vty 0 4 Router(config-line)#login Router(config-line)#password cisco.
Which command sequence will permit access to five virtual terminal lines with a password cisco?
Router
Which device performs the function of determining the path that messages should take through internetworks?
Clocking for the synchronous link.
Which function is a unique responsibility of the DCE devices shown in the exhibit?
Minimal delays in data delivery
Which is an important characteristic of the UDP protocol?
data link
Which layer encapsulates the segment into frames?
network layer
Which layer encapsulates the segment into packets?
Physical Layer
Which layer of the OSI model is responsible for transmission of data over a physical medium?
application.
Which layer of the OSI model supplies services that allow user to interface with the network?
Fiber.
Which media uses light to carry signals?
Switch
Which of the answers listed below refers to a data link layer (layer 2) device designed to forward frames between network segments?
Static IP address
Which of the following answers refers to a permanent assignment of an IP address?
A header and trailer are added. Packets are packaged into frames
Which of the following are data link layer encapsulation details? (Choose two.) a. A header and trailer are added. b. Frames are divided into segments. c. Packets are changed into bits for Internet travel. d. Packets are packaged into frames. e. Data is converted into packets.
a. Data is divided into small packets that are sent over the network, with each packet potentially taking a different route to its destination
Which of the following best describes packet switching? a. Data is divided into small packets that are sent over the network, with each packet potentially taking a different route to its destination b. Data is transmitted in a continuous stream, with no differentiation between packets c. A dedicated physical circuit is established for the entire duration of a communication d. type of switching is used by traditional telephone networks
User Functionality
Which of the following best describes the Application layer? The Application layer provides
Network addressing and best path determination
Which of the following best describes the Network Layer?
d. Router#copy running-config tftp
Which of the following is a command that can be used to save router configuration changes to a backup?
Port Number
Which of the following is not required when configuring a static route on a Cisco router?
FE80:0:0:100::123
Which of the following is the shortest valid abbreviation for FE80:0000:0000:0100:0000:0000:0000:0123?
data link layer physical layer.
Which of the following layers of the OSI model are incorporated in WAN standards?
2004:1:25A4:886F::1
Which of the following option is a valid IPv6 address?
TCP, UDP
Which of the following protocols are Transport Layer protocols
UDP TCP
Which of the following protocols are examples of TCP/IP transport layer protocols?
The application layer does not need to know what type of network is being used because that is dealt with by a layer below it.
Which of the following statements about the OSI model is true? a. The model consists of four layers that describe the requirements a technician follows to troubleshoot and support a network. b. The network layer deals with the network cabling and network device interface compatibility. c. The transport layer deals with how the data is transported from one router to another based on the IP header d. The application layer does not need to know what type of network is being used because that is dealt with by a layer below it.
b. 127.0.0.1.
Which one of the following IP addresses is local loop address that used to confirm that TCP/IP is installed and working on the local network adapter? a. 172.16.0.1 b. 127.0.0.1. c. 10.0.0.1. d. 192.168.0.1. e. 126.0.0.1.
Blogs (Weblogs).
Which one of the following describes personal opinions on any conceivable subject that posted in the internet?
binary ANDing
Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
HTTP
Which protocol is used for communication between a web server and a client browser
the environment in which the media is installed, the amount of data and the data transfer rate desired and the distance between hosts that the media will connect
Which three factors should be considered when choosing the appropriate network media?
Hot keys
Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)
identifies the communicating applications., identifies multiple conversations between the hosts.
Which two options represent Layer 4 addressing?
copper cable
Which type of network media carries data encoded into electrical impulses?
To prevent the receiver from being overwhelmed by incoming data.
Why is flow control used for TCP data transfer?
0 to 1023.
With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications?
Immediately after a router completes its boot sequence, the network administrator wants to check the routers configuration. From privileged EXEC mode, which of the following commands can the administrator use for this purpose?
a. show dash b. show running-config c. show NVRAM d. show startup-config e. show version
Prevent light loss.
what is the purpose of cladding in fiber optic cable?
Default route configured using exit interface s0/0/0
you run the following command at router 5 R5#show ip route Gateway of last resort is 0.0.0.0 to network 0.0.0.0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.0.0.4/30 is directly connected, Serial0/0/0 L 10.0.0.5/32 is directly connected, Serial0/0/0 192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.1.0/24 is directly connected, GigabitEthernet0/0 L 192.168.1.1/32 is directly connected, GigabitEthernet0/0 S* 0.0.0.0/0 is directly connected, Serial0/0/0 the above output shows