IP Addressing
This type of address is used to uniquely identify a device on an IP network.
What is an IPv4 address?
This service translates a website name into an IP address when a user types it in.
What is the Domain Name System (DNS)?
Cisco devices utilize RAM to store X , and it has this characteristic to consider.
What are "the configuration that is actively running-config is stored in RAM" and "contents of RAM are lost during a power cycle"?
This attack targets an SQL database through a user’s input field.
What is SQL injection?
A DNS query is sent by the client to this server and port #
What is the IP address of the DNS server, on port 53?
Name three nodes that should be assigned static IP addresses on a network.
What are gateways, printers, and servers?
A user can ping a website, but the page does not load if they type www.companyweb.com
Which what is a likely cause?
DNS server not responding, misconfigured, etc
Name two criteria to consider when selecting a network medium to install.
What are the environment where the medium is installed (interference) and the distance the medium can successfully carry a signal?
Name two two scenarios that benefit most from Quality of Service (QoS).
What are "students watching a lecture from a YouTube site" and "a student communicating via Skype with a friend in another country"?
When a packet travels from Host A to Host B, it arrives with this source MAC and IP.
Source MAC of destination router, source IP of Host A
In IPv6, this field replaces the Time-to-Live field from IPv4, and this address field remains unchanged from IPv4.
What are the Hop Limit field and the Source Address field?
A workstation automatically gets its IP address thanks to this service.
What is Dynamic Host Configuration (DHCP)?
A tourist with a Wi-Fi-only laptop can connect to the internet via their smartphone’s 3G/4G by doing this.
What is enabling tethering and creating a hotspot?
A home wireless router gets its global address for NAT translations by acting as a client in this way...
The wireless router will act as a DHCP client in order to receive global addressing from the ISP.
If a Cisco LAN switch gets a frame with an unknown destination MAC, it does this.
What is forward the frame out all ports except the port where the frame is received?
A technician tries to configure 2001:db8::1111::0200 as an IPv6 address but it doesn't work. What is wrong with this notation?
2001:db8::1111::0200
Contains two double-colons
A network technician securely accesses a device's command prompt remotely using this service.
What is SSH?
In Ethernet’s CSMA/CD method, this rule ensures all devices check the line before sending data.
What is "all network devices must listen before transmitting"?
Name three practices that help defend against social engineering attacks.
What are "educate employees regarding security policies," "resist the urge to click on enticing web links," and "do not provide password resets in a chat window"?
A PC sends an ARP request to reach a remote PC; the router replies with this address.
What is its own Fa0/0 MAC address?
In an IPv4 routing table on a Cisco router, the code "C" indicates this type of route.
Options: dynamic, default, static, directly connected
What is a directly connected route?
When an IPv6 router responds to an RS message, it sends these two pieces of information to the client.
What are prefix and prefix length?
When analog voice signals are digitized for a network, they’re encapsulated in this format.
What are IP packets?
What is an example of cloud computing?
What is a service that offers on-demand access to shared resources?
Which two OSI model layers have the same functionality as two layers of the TCP/IP model?
What are transport and network?