Routing Basics
This device connects multiple LANs and routes traffic between them.
router
This is the default subnet mask for a Class C network.
255.255.255.0
A network has a /28 subnet mask. How many usable host addresses does it have?
14
This type of network uses radio waves to connect devices
wireless
This command shows the path a packet takes from source to destination.
tracert or traceroute
Routers operate at this OSI model layer.
Layer 3 (Network Layer)
Subnetting improves performance by reducing the number of these on a network.
hosts
You are given the network 192.168.10.0/24 and need to create at least 5 subnets, each supporting at least 25 hosts. What subnet mask should you use?
/27 (255.255.255.224)
This encryption standard is the most secure of the listed: WEP, WPA, WPA2, WPA3.
WPA3
This tool can identify wireless interference sources.
spectrum analyzer
This kind of route is manually entered by an administrator.
static
This formula determines how many hosts a subnet can support.
2^n - 2
You need a subnet that can support exactly 62 usable hosts. What CIDR prefix length should you use?
/26
Changing this prevents others from logging into the router with default credentials.
default login/password
This issue can occur if a DHCP server gives out the wrong settings
IP address misconfiguration
This process adds information from one layer to the other through the OSI Model
encapsulation
This system replaced classful addressing for greater efficiency.
CIDR
Given the IP address 172.16.5.70 with a /20 mask, what is the network address of the subnet it belongs to?
172.16.0.0
A unique name for a wireless network is called this.
SSID
This tool captures and analyzes packets to help identify congestion, dropped packets, or unusual network behavior.
packet analyzer (Wireshark is fine here)
This protocol enables a router to determine the MAC address of a device based on its IP address.
ARP
This subnet mask provides exactly 64 usable host addresses.
255.255.255.192 (/26)
How many subnets can you create from a /24 network if you use a /28 mask?
16
This device is required on a computer to connect to a wireless network.
wireless NIC
When a website fails to load despite an active Internet connection, this service may be misconfigured or down.
DNS