Networking Concepts Flashcards
The company’s corporate headquarters provided your branch office a portion of their Class C subnet to use at a new office location. In the next several questions, you will be asked to allocate the minimum number of addresses using CIDR notation to accommodate each department’s needs.
/26
Mark is setting up a DHCP server on a segment of the corporate LAN. Which of the following options is NOT required in the DHCP scope to allow hosts on that LAN segment to be assigned a dynamic IP address and still be able to access the Internet and internal company servers?
Reservations
Routing prefixes, which are assigned in blocks by IANA and distributed by the Regional Internet Registry (RIR), are known as what?
Autonomous system number
Which of the following BEST describes how a DHCP reservation works
By matching a MAC address to an IP address within the DHCP scope
Which of the following is used to proxy client requests for IP configurations across different network segments?
DHCP relay
Which of the following network protocols is used to send email from one server to another server?
SMTP
A network administrator is tasked with building a wireless network in a new building located right next door. The wireless clients should not have visibility to one another but should have visibility to the wired users. Users must seamlessly migrate between the buildings while maintaining a constant connection to the LAN. How should he configure the new wireless network in the new building?
Use the same SSIDs on different channels and AP isolation
At which of the following OSI layer does QoS operate?
Layer 3
Your company has decided to upgrade its legacy phone system to use VoIP devices instead. The new phones will download the configurations from a server each time they boot up. Which of the following ports needs to be opened on the firewall to ensure the phones can communicate with the TFTP server?
69
Which of the following applies to data as it travels from Layer 1 to Layer 7 of the OSI model?
De-encapsulation
A network administrator was told by the Chief Information Officer (CIO) to set up a new office with a network that has redundancy. What topology would BEST meet the CIO’s requirement?
Mesh
You have been asked to create a network where visitors can access the Internet without disrupting the office’s own intranet. Which of the following types of networks should you create?
Guest network
What is an example of a signaling protocol used in VoIP telephony?
H.323
What is considered a classless routing protocol?
IS-IS
Which of the following protocols must be implemented for two switches to share VLAN information?
VTP
Which media access control technology will listen to a cable to ensure there is no traffic being transmitted before sending its traffic but will implement a back-off timer if a collision does occur?
CSMA/CD
What is the correct CIDR notation for the Marketing department’s subnet which requires 11 devices?
/28
(This is a simulated Performance-Based Question. ON the real exam, you may be given a chart with numerous ports and protocols and be asked to drag and drop them to match the ports with the protocols.)
What ports do FTP and SFTP utilize?
21, 22
Which type of network geography is used to connect various circuits between remote locations?
WAN
A network administrator wants to implement a centralized monitoring solution that utilizes push alerts sent from the client to a server. Which of the following should be implemented within the network?
SNMP
Which of the following wireless technologies use MIMO on non-overlapping channels to increase the wireless network’s bandwidth?
802.11n
You have been asked by your supervisor, Martha, to ensure that you enable 802.3af on a managed switch. Which of the following features does Martha want you to enable?
PoE
Which of the following is an example of a valid IPv4 address?
192.168.1.254
The Chief Information Officer (CIO) in your company has been trying to convince the Chief Security Officer (CSO) that the company should move its data to a SaaS solution to save some money in the budget. The CSO is hesitant to move all of the company’s data because she is concerned with the risk involved in moving the corporation’s sensitive data to a SaaS solution. The CSO has been asked for a reason behind her fears. Which of the following might be her response?
Migrating all of our data to a SaaS solution will result in a loss of full control over our data and resources
Jason just got into his car and paired his smartphone to his car’s stereo. Which of the following types of networks was just created?
PAN
The server administrators have asked you to open the default port on the firewall for their new DNS server. Which of the following ports should you set as ALLOW in the ACL?
53
A college needs to provide wireless connectivity in a cafeteria with a minimal number of WAPs. What type of antenna will provide the BEST coverage?
High gain
Which of the following ports are used to provide secure remote connection sessions over the Internet?
22
You have been asked to add an entry to your DNS records to allow SMTP traffic to be sent out using your domain name. Which type of record should you add to your DNS record?
MX
You have been asked to connect three 802.11a devices to an 802.11g access point configured with WEP. The devices are within 20 feet of the access point, but they still cannot associate with the access point. Which of the following is the MOST likely cause of the devices not associating with the WAP?
Frequency mismatch
A network administrator needs to allow employees to upload files to a remote server securely. What port must be allowed through the firewall?
22
Your network has been the victim of a data breach. Your company has hired an incident response team to help control the breach’s damage and restore the network to its full functionality. The incident response team wants to connect a packet capture device to the switch that connects your servers to the DMZ. Which of the following should be configured to ensure the packet capture device can receive all the network traffic going to and from the servers?
Port mirroring
Which type of wireless technology are OFDM, QAM, and QPSK examples of?
Modulation
You are configuring a point-to-point link and want to ensure it is configured for the most efficient use of your limited pool of available public IP addresses. Which of the following subnet masks would be BEST to use in this scenario?
/30
Which of the following network geographies refers to a network that spans several buildings within walking distance of each other, such as at a business park?
CAN
(This is a simulated Performance-Based Question.)
The company’s corporate headquarters provided your branch office a portion of their Class C subnet to use at a new office location. You must allocate the minimum number of addresses using CIDR notation to accommodate each department’s needs.
/26
What type of cable would you use to connect a switch to a hub?
Crossover
Which of the following port or ports does SIP use?
5060/5061
What describes an IPv6 address of ::1?
Loopback
Dion Training has just installed a brand new email server. Which of the following DNS records would need to be created to allow the new server to receive email on behalf of diontraining.com?
MX
Which of the following protocols are designed to avoid loops on a Layer 2 network?
802.1d
Which of the following describes the ID of a specified native VLAN when traffic passes over a trunk?
It becomes the default VLAN for untagged frames