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PCNA > Course 3: Routers > Flashcards

Course 3: Routers Flashcards

1
Q

Which network host configuration is the address of the router?

A) IP Address
B) Default Gateway
C) Subnet Mask
D) DNS Server

A

B) Default Gateway

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2
Q

If the router has an IP address of 10.0.5.1 and a summer mask of 255.255.255.0, what is the IP Address of the network?

A) 192.168.1.0
B) 10.0.0.0
C) 10.0.5.0
D) 10.0.5.1

A

C) 10.0.5.0

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3
Q

Routers operate at which layer of the OSI model?

A) Layer 1 - Physical Layer
B) Layer 2 - Data Link Layer
C) Layer 3 - Network Layer
D) Layer 4 - Transport Layer

A

C) Layer 3 - Network Layer

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4
Q

Network Address Translation (NAT) translates ______ into ______.

A) domain names, a private IP address
B) a public IP address, MAC address
C) the Gateway’s IP address, binary
D) a private IP address, a public IP address

A

D) a private IP address, a public IP address

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5
Q

To prevent unnecessary routing hops, a technician should:

A) Put an ISP’s all-in-one modem into “bridge mode”
B) Configure the router to use the 192.198.1.0 subnet
C) Configure the router to use a static IP address for WAN
D) Use Google’s public DNS servers

A

A) Put an ISP’s all-in-one modem into “bridge mode”

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6
Q

Which network host configuration determines the number of available IP addresses?

A) IP Address
B) Default Gateway
C) Subnet Mask
D) DNS Server

A

C) Subnet Mask

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7
Q

The first thing you need to determine when planning a network is:

A) The max number of devices that will connect
B) Whether the network will use the 10.x.x.x, 172.16.x.x, or 192.168.x.x private network address
C) Whether IP addresses will be dynamically or statically assigned
D) The dynamic DNS name of the network

A

A) The max number of devices that will connect

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8
Q

A technician is designing a network for approximately 1000 hosts, which Subnet Mask should the technician use?

A) 255.255.254.0
B) 255.255.248.0
C) 255.255.252.0
D) 255.255.240.0

A

B) 255.255.248.0

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9
Q

_____ addresses are predictable and dynamically assigned.

A) Static
B) Dynamic
C) Reserved
D) MAC

A

C) Reserved

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10
Q

Typically, the first available IP address on a network is assigned statically to which network device?

A) Switch
B) MPU
C) Access Point
D) Router

A

D) Router

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11
Q

The default length of a DHCP lease on your PCNA router is ____.

A) 1 hour
B) 12 hours
C) 6 hours
D) 24 hours

A

B) 12 hours

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12
Q

The broadcast address for the network 192.168.0.0 /22 is ______.

A) 192.168.0.255
B) 192.168.2.255
C) 192.168.1.255
D) 192.168.3.255

A

D) 192.168.3.255

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13
Q

Which is the IP address range for hosts on the network 192.168.0.0 /21?

A) 192.168.0.1 to 192.168.6.254
B) 192.168.0.1 to 192.168.7.254
C) 192.168.0.1 to 192.168.8.254
D) 192.168.0.1 tao 192.168.9.254

A

B) 192.168.0.1 to 192.168.7.254

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14
Q

Which remote access method should you avoid when remotely servicing a customer’s network?

A) Port Forwarding
B) Cloud Management
C) OpenVPN
D) Dynamic DNS

A

A) Port Forwarding

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15
Q

VLANS allow you to segment network traffic into separate ______.

A) Broadcast Domains
B) Unicast Domains
C) Multicast Domains
D) Polycast Domains

A

A) Broadcast Domains

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16
Q

The multicast traffic from a surveillance system is affecting the networks performance. What is a possible solution?

A) VLAN
B) mDNS
C) DDNS
D) Port Forwarding

A

A) VLAN

17
Q

If you cannot enable a modem’s bridge mode, _____ is the next best option.

A) VLAN
B) Port Forwarding
C) DDNS
D) DMZ

A

D) DMZ

18
Q

VLANS are:

A) Logically-separated networks that share the same physical hardware
B) Physically-separated networks that share the same configuration
C) Logically-separated networks that share no common components
D) Physically-separated networks that share no common components

A

A) Logically-separated networks that share the same physical hardware

19
Q

What devices are typically connected on trunk points?

A) Routers and managed switches
B) Routers and unmanned switches
C) Routers and host devices
D) Routers and modems

A

A) Routers and managed switches

20
Q

From the choices below, what is the most secure method for accessing a network remotely?

A) Bridge Mode
B) Port Forwarding
C) DMZ
D) VPN

A

D) VPN

PCNA (5 decks)

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