Summary: Operating systems and networks - Set 1

Pytanie 1

What is a characteristic of a fault tolerant network?

Pytanie 2

three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

Pytanie 3

What is a benefit of using cloud computing in networking?

Pytanie 4

What is the function of the shell in an OS

Pytanie 5

Which connection provides a secure CLI session with encryption to a Cisco switch?

Pytanie 6

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?

Pytanie 7

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

Pytanie 8

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses a console connection to connect to the switch, which password is needed to access user EXEC mode?

Pytanie 9

On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?

Pytanie 10

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?

Pytanie 11

What is an advantage to using a protocol that is defined by an open standard?

Pytanie 12

What are two benefits of using a layered network model? (Choose two.)

Pytanie 13

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.)

Pytanie 14

Which name is assigned to the transport layer PDU?

Pytanie 15

A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

Pytanie 16

A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?

Pytanie 17

Which type of UTP cable is used to connect a PC to a switch port?

Pytanie 18

A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)

Pytanie 19

What is a characteristic of UTP cabling?

Pytanie 20

What are two characteristics of fiber-optic cable? (Choose two.)

Pytanie 21

What is a characteristic of the LLC sublayer?

Pytanie 22

A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?

Pytanie 23

What method is used to manage contention-based access on a wireless network?

Pytanie 24

What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)

Pytanie 25

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?

Pytanie 26

What are two examples of the cut-through switching method? (Choose two.)

Pytanie 27

What are two actions performed by a Cisco switch? (Choose two.)

Pytanie 28

Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?

Pytanie 29

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?

Pytanie 30

What addresses are mapped by ARP?

Pytanie 31

What information is added during encapsulation at OSI Layer 3?

Pytanie 32

What are two services provided by the OSI network layer? (Choose two.)

Pytanie 33

Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?

Pytanie 34

Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

Pytanie 35

What are two functions of NVRAM? (Choose two.)

Pytanie 36

Refer to the exhibit. What will be the result of entering this configuration the next time a network administrator connects a console cable to the router and no additional commands have been entered?

Pytanie 37

What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?

Pytanie 38

What are three characteristics of multicast transmission? (Choose three.)

Pytanie 39

What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)

Pytanie 40

What purpose does NAT64 serve in IPv6?

Pytanie 41

What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

Pytanie 42

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

Pytanie 43

Which three addresses are valid public addresses? (Choose three.)

Pytanie 44

Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)

Pytanie 45

What type of IPv6 address is FE80::1?

Pytanie 46

How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?

Pytanie 47

A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of host bits?

Pytanie 48

A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones – 10 addresses Subnetwork B: PCs – 8 addresses Subnetwork C: Printers – 2 addresses What single subnet mask would be appropriate to use for the three subnetworks?

Pytanie 49

How many hosts are addressable on a network that has a mask of 255.255.255.248?

Pytanie 50

Which subnet would include the address 192.168.1.96 as a usable host address?

Pytanie 51

What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted?

Pytanie 52

What are two characteristics shared by TCP and UDP? (Choose two.)

Pytanie 53

Why are port numbers included in the TCP header of a segment?

Pytanie 54

Refer to the exhibit. Consider the IP address of 192.168.10.0/24 that has been assigned to a high school building. The largest network in this building has 100 devices. If 192.168.10.0 is the network number for the largest network, what would be the network number for the next largest network, which has 40 devices?

Pytanie 55

Which statement is true about variable-length subnet masking?

Pytanie 56

In what two situations would UDP be the preferred transport protocol over TCP? (Choose two.)

Pytanie 57

Pytanie 58

What is the TCP mechanism used in congestion avoidance?

Pytanie 59

Which scenario describes a function provided by the transport layer?

Pytanie 60

A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from one of the web browsers. 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?

Pytanie 61

What are two ways that TCP uses the sequence numbers in a segment? (Choose two.)

Pytanie 62

Which two tasks are functions of the presentation layer? (Choose two.)

Pytanie 63

Which three statements characterize UDP? (Choose three.)

Pytanie 64

What is a key characteristic of the peer-to-peer networking model?

Pytanie 65

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?

Pytanie 66

Which domain name would be an example of a top-level domain?

Pytanie 67

A PC obtains its IP address from a DHCP server. If the PC is taken off the network for repair, what happens to the IP address configuration?

Pytanie 68

When planning for network growth, where in the network should packet captures take place to assess network traffic?

Pytanie 69

A wireless host needs to request an IP address. What protocol would be used to process the request?

Pytanie 70

Which example of malicious code would be classified as a Trojan horse?

Pytanie 71

When applied to a router, which command would help mitigate brute-force password attacks against the router?

Pytanie 72

A network technician suspects that a particular network connection between two Cisco switches is having a duplex mismatch. Which command would the technician use to see the Layer 1 and Layer 2 details of a switch port?

Pytanie 73

Where are Cisco IOS debug output messages sent by default?

Pytanie 74

Match the description with the associated IOS mode. (not all options are used.)

Pytanie 75

Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all targets are used.)

Pytanie 76

Refer to the exhibit. An administrator is testing connectivity to a remote device with the IP address 10.1.1.1. What does the output of this command indicate?

Pytanie 77

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?

Pytanie 78

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this requirement?

Pytanie 79

A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?

Pytanie 80

How does quality of service help a network support a wide range of applications and services?

Pytanie 81

What source IP address does a router use by default when the traceroute command is issued?

Pytanie 82

After making configuration changes on a Cisco switch, a network administrator issues a copy running-config startup-config command. What is the result of issuing this command?

Pytanie 83

Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator has already logged into a Telnet session on the switch, which password is needed to access privileged EXEC mode?

Pytanie 84

Match each item to the type of topology diagram on which it is typically identified. (Not all options are used.)

Pytanie 85

Which connection provides a secure CLI session with encryption to a Cisco network device?

Pytanie 86

What function does pressing the Tab key have when entering a command in IOS?

Pytanie 87

What layer is responsible for routing messages through an internetwork in the TCP/IP model?

Pytanie 88

Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network? Data is sent from the internet layer to the network access layer. Packets are sent from the network access layer to the transport layer. Segments are sent from the transport layer to the internet layer.* Frames are sent from the network access layer to the internet layer.

Pytanie 89

What unique address is embedded in an Ethernet NIC and used for communication on an Ethernet network?

Pytanie 90

Which procedure is used to reduce the effect of crosstalk in copper cables?

Pytanie 91

During the encapsulation process, what occurs at the data link layer for a PC connected to an Ethernet network?

Pytanie 92

What are two characteristics of Ethernet MAC addresses? (Choose two.)

Pytanie 93

If a device receives an Ethernet frame of 60 bytes, what will it do?

Pytanie 94

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.)

Pytanie 95

Which switching method has the lowest level of latency?

Pytanie 96

Which two commands can be used on a Windows host to display the routing table? (Choose two.)

Pytanie 97

Which two functions are primary functions of a router? (Choose two.)

Pytanie 98

What is the binary representation of 0xCA?

Pytanie 99

At a minimum, which address is required on IPv6-enabled interfaces?

Pytanie 100

Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?

Pytanie 101

What is the purpose of the command ping ::1?

Pytanie 102

How many usable IP addresses are available on the 192.168.1.0/27 network?

Pytanie 103

What is the process of dividing a data stream into smaller pieces before transmission?

Pytanie 104

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?

Pytanie 105

Which two roles can a computer assume in a peer-to-peer network where a file is being shared between two computers? (Choose two.)

Pytanie 106

Which two protocols operate at the highest layer of the TCP/IP protocol stack? (Choose two.)

Pytanie 107

What is one difference between the client-server and peer-to-peer network models?

Pytanie 108

What is the function of the HTTP GET message?

Pytanie 109

Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?

Pytanie 110

What network service resolves the URL entered on a PC to the IP address of the destination server?

Pytanie 111

A network engineer is analyzing reports from a recently performed network baseline. Which situation would depict a possible latency issue?

Pytanie 112

Which firewall feature is used to ensure that packets coming into a network are legitimate responses to requests initiated from internal hosts?

Pytanie 113

What is one indication that a Windows computer did not receive an IPv4 address from a DHCP server?

Pytanie 114

Which command can an administrator issue on a Cisco router to send debug messages to the vty lines? terminal monitor* logging console logging buffered logging synchronous

Pytanie 115

Fill in the blank. During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a ........ message.

Pytanie 116

A medium-sized business is researching available options for connecting to the Internet. The company is looking for a high speed option with dedicated, symmetric access. Which connection type should the company choose?

Pytanie 117

What is the purpose of having a converged network?

Pytanie 118

What characteristic of a network enables it to quickly grow to support new users and applications without impacting the performance of the service being delivered to existing users? reliability scalability* quality of service accessibility

Pytanie 119

After several configuration changes are made to a router, the copy running-configuration startup-configuration command is issued. Where will the changes be stored?

Pytanie 120

Refer to the exhibit. From global configuration mode, an administrator is attempting to create a message-of-the-day banner by using the command banner motd V Authorized access only! Violators will be prosecuted! V When users log in using Telnet, the banner does not appear correctly. What is the problem?

Pytanie 121

What are three characteristics of an SVI? (Choose three.)

Pytanie 122

A technician configures a switch with these commands:SwitchA(config)# interface vlan 1 SwitchA(config-if)# ip address 192.168.1.1 255.255.255.0 SwitchA(config-if)# no shutdownWhat is the technician configuring? Telnet access SVI password encryption physical switchport access

Pytanie 123

In computer communication, what is the purpose of message encoding?

Pytanie 124

What is a characteristic of multicast messages?