Wgu C480

Front 1

Which two routing protocols use bandwidth in their calculation of metric by default?

Back 1

OSPF

EIGRP

Front 2

What device is a Layer 3 device that is used to make forwarding decisions based on a Layer 3 address?

Back 2

Router

Front 3

What WAN topology enables you to minimize WAN expenses by not directly connecting any two remote locations?

Back 3

Hub-and-spoke

Front 4

In the modern LAN, what type of device is typically used at the center of a star topology?

Back 4

Switch

Front 5

What device is known for a large number of interfaces and its ability to create separate collision domains for each end device?

Back 5

Switch

Front 6

What device would forward information using the following address as its primary information: 192.168.1.101?

Back 6

Router

Front 7

What TCP port is used by RDP?

Back 7

3389

Front 8

A corporate e-mail service would be classified as belonging to what Layer of the OSI Model?

Back 8

Application

Front 9

Which of the following protocols is used for transferring files with a remote host in a non-secure fashion and without requiring user credentials?

Back 9

TFTP

Front 10

Which layer of the OSI Model is concerned with how bits are represented on the medium?

Back 10

Physical

Front 11

Internet Protocol (IP) resides at what layer of the OSI Model?

Back 11

Layer 3

Network

Front 12

An Ethernet workgroup switch resides at which layer of the OSI Model?

Back 12

Layer 2

Front 13

Which of the following protocols is used for transferring files with a remote host in a non-secure fashion?

Back 13

FTP

Front 14

Which of the following are sublayers of the Data Link Layer (that is, Layer 2) of the OSI Model?

Back 14

MAC

LLC

Front 15

What is the common UDP port (that is, "well-known" port) used by a DHCP server?

Back 15

67

Front 16

Which of the following manages and interconnects the cables between end user devices and an MDF?

Back 16

Intermediate distribution frames

Front 17

A location within a building where network cables terminate is commonly called a(n) __________.

Back 17

wiring closet

Front 18

A DHCP reservation involves the exchange of four messages between a DHCP client and a DHCP server. What is the first of these messages?

Back 18

DHCPDISCOVER

Front 19

Which of the following can often be categorized as an encryption device (that is, a device capable of participating in an encrypted session)?

Back 19

Firewall

VPN concentrator

Router

Front 20

Which type of unshielded twisted pair (UTP) is commonly used in Ethernet 10BASE-T networks, which carry data at a rate of 10 Mbps (although it can carry data at a maximum rate of 16 Mbps, as seen in some Token Ring networks)?

Back 20

Category 3

Front 21

Which of the following network appliances performs the most processor-intensive tasks and is critical in IPSec environments?

Back 21

VPN concentrator

Front 22

Which type of fiber optic connector contains two fiber strands in a single connector?

Back 22

MTRJ - media termination recommended jack

Front 23

Which of the following copper connector types is most commonly used for cable TV connections?

Back 23

F-connector

Front 24

Which of the following standards specifies a type of coaxial cable used for short distance applications, such as carrying composite video between two nearby devices, and has a characteristic impedance of 75 Ohms?

Back 24

RG-59

Front 25

What virtual network device allows Microsoft Active Directory (AD) services, UNIX-based web services, and DNS services to be co-resident on the same network device?

Back 25

Virtual server

Front 26

Which of the following is a telephony solution that is typically based on a traditional privately-owned telephone system?

Back 26

Hosted PBX

Front 27

Consider the fully-qualified domain name (FQDN) http://sample.pearsonitcertification.com. What is the root domain in the FQDN?

Back 27

com

Front 28

What variant of Domain Name System (DNS) overcomes the size limitations of the original version of DNS through the use of pseudo-resource-records?

Back 28

EDNS - Extension Mechanisms for DNS

Front 29

Identify the purpose of a DHCP scope.

Back 29

A scope acts as a pool of IP addresses from which a DHCP server can assign IP addresses to DHCP clients.

Front 30

What is the minimum category of unshielded twisted pair (UTP) cable that can be used for 10GBASE-T networks?

Back 30

Category 6a

Front 31

What is the distance limitation of 10GBASE-LR?

Back 31

10 km

Front 32

What is a native VLAN?

Back 32

A native VLAN is the VLAN on an IEEE 802.1Q trunk that does not have any tag bytes added.

Front 33

You have a Layer 2 switch. You have left all ports in the default VLAN. You connect five workstations. How many broadcast domains exist on this switch?

Back 33

1

Front 34

Which of the following reflect the media type, bandwidth capacity, and distance limitation combination of 10BASE5 Ethernet?

Back 34

Coax/10 Mbps/500 m

Front 35

What is the distance limitation of 10GBASE-SW?

Back 35

300 m

Front 36

What is the distance limitation of 10GBASE-LW?

Back 36

10 km

Front 37

You have a class C subnet for your office networks. Allocate the minimum number of addresses required to accommodate each department to maximize the number of available subnets.

Network range: 192.168.7.0/24

Marketing: 57 devices
Production: 28 devices
IT: 112 devices
HR: 9 devices

Select the minimum number of addresses using the CIDR notation required for each network

Back 37

IT /25

Marketing /26

Production /27

HR /28

A /24 subnet includes 256 IP addresses. Thus, 256-240=16. So the contiguous block of remaining addresses will be /28.

Front 38

You have a class B subnet to use at a new office location. Allocate the minimum number of addresses required to accommodate each department to maximize the number of available subnets.

Network range: 172.16.7.0/16

Sales: 72 devices
IT: 128 devices
HR: 8 devices

Back 38

IT 172.16.7.0/24

Sales 172.16.7.0/25

HR 172.16.7.0/28

Front 39

Your company has been assigned the 172.20.0.0/16 network for use at one of its sites. You need to calculate a subnet mask that will accommodate 100 hosts per subnet while maximizing the number of available subnets. What subnet mask will you use?

Back 39

255.255.255.128

Front 40

If you need to create at least 58 subnets, how many bits must you use for subnetting?

Back 40

6

Front 41

While DHCP is not the only protocol used for dynamically assigning IP addresses to clients, it does offer a more robust set of features. Which of the following is a predecessor to DHCP, offering a reduced feature set?

Back 41

BOOTP

Front 42

Subnetting extends a classful subnet mask of an IP network to create additional subnets. However, what IP addressing approach removes bits from a classful subnet mask, to summarize multiple classful networks?

Back 42

CIDR

Front 43

There is a special range of addresses reserved for systems that cannot obtain an IP address automatically from a DHCP server. These addresses are not routable on the network. What is the value in the first octet for these addresses?

Back 43

169

Front 44

What class of IP address is 172.16.1.2?

Back 44

Class B

Front 45

Approximately how many addresses are provided by a Class B scheme?

Back 45

65,000

Front 46

If you need to create at least 30 subnets, how many bits must you use for subnetting?

Back 46

5

Front 47

What is the subnet mask address used in a default static route?

Back 47

0.0.0.0

Front 48

What variation of network address translation (NAT) allows you to statically configure the inside global address assigned to a specific device inside your network?

Back 48

SNAT

Front 49

What does RIP use for a metric?

Back 49

Hop count

Front 50

What is a routing protocol that is used for moving prefixes back and forth between different autonomous systems?

Back 50

BGP

Front 51

What is the best possible value for administrative distance?

Back 51

0

Front 52

Which of the following is a type of network interface device (NID) that includes circuitry to perform such functions as converting between framing formats on a digital circuit?

Back 52

Smart jack

Front 53

What is a very common protocol found on dedicated leased lines?

Back 53

PPP

Front 54

A T3 connection is an example of which WAN type?

Back 54

Leased line

Front 55

How big is the payload of an ATM cell?

Back 55

48 Bytes

Front 56

ISDN is an example of which of these WAN types?

Back 56

Circuit switched

Front 57

What is the bandwidth of an OC-3?

Back 57

155.52 Mbps

Front 58

Mark installs a wireless network for his office. He needs the wireless range to extend up to 300 feet. Which of the following would he recommend?

Back 58

802.11n

Front 59

You need to implement a secure WAP so that only authenticated employees can access it. Which of the following standards will you implement?

Back 59

802.1X

Front 60

Which of the following approaches to wireless LAN (WLAN) security helps conceal the existence of a WLAN?

Back 60

Disabling SSID broadcast

Front 61

If multiple wireless access points exist in a wireless LAN (WLAN), what percentage of coverage overlap should the access points have?

Back 61

10 to 15 percent

Front 62

You are configuring a wireless LAN (WLAN) with three wireless access points having overlapping coverage areas. The wireless access points are using the 2.4 GHz frequency band, and are located in the United States. What three non-overlapping channels in the 2.4 GHz band should you select?

Back 62

1

6

11

Front 63

A wireless LAN (WLAN) containing only one access point (AP) is known as what type of WLAN?

Back 63

BSS

Front 64

The IEEE 802.11n wireless standard has which of the following frequency band / maximum bandwidth parameters?

Back 64

2.4 GHz or 5 GHz / > 300 Mbps

Front 65

Which of the following approaches to wireless LAN (WLAN) security involves the use of an authentication server?

Back 65

802.1X

Front 66

Which of the following approaches to wireless LAN (WLAN) security uses RC4 as its encryption algorithm?

Back 66

WEP

Front 67

What type of antenna radiates power at relatively equal power levels in all directions?

Back 67

Omnidirectional

Front 68

Identify the antenna type, referred to in wireless LAN (WLAN) design, that is a theoretical antenna that radiates an equal amount of power in all directions (in a spherical pattern), and is said to have a gain of 0 dBi.

Back 68

Isotropic

Front 69

Direct-Sequence Spread Spectrum (DSSS) is a wireless LAN (WLAN) transmission method. Which two of the following WLAN standards support DSSS?

Back 69

802.11b

802.11g

Front 70

What technology is an IETF version of HSRP?

Back 70

VRRP

Front 71

Which of the following are Layer 3 redundancy mechanisms?

Back 71

HSRP

CARP

Front 72

What term defines a variation in the delay of packets in the network?

Back 72

Jitter

Front 73

Identify the quality of service (QoS) function that alters bits in a frame, cell, or packet.

Back 73

Marking

Front 74

Queuing is another name for which of the following quality of service (QoS) functions?

Back 74

Congestion management

Front 75

What is an acceptable one-way latency in a typical VoIP network?

Back 75

150 ms

Front 76

Which of the following UNIX commands is primarily used to resolve a fully-qualified domain name (FQDN) to an IP address and can operate in an interactive mode (that is, you enter this command, receive a prompt, and can then give additional commands)?

Back 76

nslookup

Front 77

Which of the following is a Microsoft Windows® command that displays what Layer 2 MAC address corresponds to a Layer 3 IP address?

Back 77

arp

Front 78

What tool would you use to release a DHCP address on a Windows system?

Back 78

ipconfig

Front 79

Which of the following Microsoft Windows® commands is primarily used to check reachability to a remote IP address?

Back 79

ping

Front 80

Andrew finds that the DVD drive installed on the computer is not working. He decides to check the voltage coming to the DVD drive. Which of the following devices will he use?

Back 80

Multimeter

Front 81

A company has subscribed to a DSL connection for its network. Which tool will be used to extend the demarc for the new connection?

Back 81

Punch down tool

Front 82

Which of the following pieces of equipment can be used to attach an RJ-45 connector to a UTP cable?

Back 82

Crimper

Front 83

Which Syslog severity level is a condition where a specific operation failed to complete successfully?

Back 83

4

Front 84

Identify the Simple Network Management Protocol (SNMP) component that is a piece of software, which runs on a managed device (for example, a server, router, or a switch).

Back 84

SNMP agent

Front 85

Cisco's PPDIOO model is an example of which of the following configuration management (CM) components?

Back 85

Asset management

Front 86

Which three of the following are common elements in a set of network documentation?

Back 86

Contact information

Policies

Network maps

Front 87

A network administrator can use which of the following to locate a break in a fiber optic cable?

Back 87

OTDR

Front 88

Which of the following connects the transmit leads of an Ethernet connector (or the transmit fiber of a fiber optic connector) to the receive leads of the same Ethernet connector (or the receive fiber of a fiber optic connector)?

Back 88

Loop back plug

Front 89

If you are working on an isolated test network (that is, a test bed), what piece of equipment can you use to simulate a heavy network load?

Back 89

Throughput tester

Front 90

Identify the Simple Network Management Protocol (SNMP) component that is an unsolicited message sent from an SNMP managed device to provide a notification about a significant event occurring on that managed device.

Back 90

SNMP trap

Front 91

Which of the following allows a secure communication between a private network and a public network, such as the Internet?

Back 91

Tunneling

Front 92

Which two of the following are firewall inspection types?

Back 92

Stateful

Packet filtering

Front 93

A firewall might use what configuration option to prevent users on the Internet from initiating sessions with devices inside a corporate network, while still allowing users on the Internet to initiate sessions with publicly available corporate servers (for example, an e-mail server or a web server)?

Back 93

DMZ

Front 94

Which of the following security attacks occurs when an attacker convinces someone to voluntarily provide information (for example, username and password credentials) to the attacker?

Back 94

Social engineering attack

Front 95

Which of the following requires two types of authentication (but no more) from a user seeking admission to a network?

Back 95

TFA

Front 96

While an IPsec tunnel is being established, which type of session is initially formed to protect the exchange of parameters used to form the IPsec session?

Back 96

Internet Security Association and Key Management Protocol (ISAKMP)

Front 97

Which two of the following are true regarding a client-to-site and site-to-site virtual private networks (VPN)?

Back 97

1. A client-to-site VPN (also known as a remote access VPN) interconnects a remote user with a site, as an alternative to dial-up or ISDN connectivity, at a reduced cost.

2.

A site-to-site VPN interconnects two locations, as an alternative to a leased line, at a reduced cost.

Front 98

Which of the following security attacks leverages the PORT command?

Back 98

FTP bounce attack

Front 99

Which of the following user authentication technologies uses digital certificates and a certificate authority (CA)?

Back 99

PKI

Front 100

Which of the following best defines an IDS sensor?

Back 100

An IDS sensor receives a copy of traffic being analyzed and communicate with a security appliance to prevent subsequent attack.

Front 101

Which of the following security threats is a program that appears to be for one purpose (for example, a game), but secretly performs another task (for example, collecting a list of contacts from an end-user's e-mail program)?

Back 101

Trojan horse

Front 102

Which of the following security attacks occurs when an attacker sends a target system a flood of data or requests that consume the target system's resources?

Back 102

DoS attack

Front 103

Which step in a structured troubleshooting methodology can most benefit from your experience and intuition?

Back 103

Hypothesize a probable cause.

Front 104

Which of the following conditions can occur when an analog connection creates an electromagnetic field around its conductors, inducing its waveforms on a nearby analog connection?

Back 104

Cross-talk

Front 105

What documentation should be generated at the conclusion of a successful troubleshooting effort?

Back 105

Post mortem report

Front 106

What can you add to a network to mitigate a power failure that might otherwise make an Ethernet switch unusable?

Back 106

UPS

Front 107

You have an Ethernet switch with port 1 assigned to VLAN A and port 2 assigned to VLAN B. How can traffic from a device connected to port 1 be forwarded to port 2?

Back 107

Traffic must be routed to flow between VLANs

Front 108

What is the measure of a wireless signal's strength?

Back 108

RSSI