1-30 Network+

QUESTION 1: Which of the following is the MOST effective security control to keep a company's physical perimeter protected against intrusions leveraged by social-engineering techniques?

• A: Employee training
• B: Biometric lockers
• C: Access control vestibule
• D: Motion detection

QUESTION 2: An online gaming company needs a cloud solution that will allow for more virtual resources to be deployed when tournaments are held. The number of users who access the service increases during tournaments. The company also needs the resources to return to baseline levels once the resources are not needed in order to reduce cost. Which of the following cloud concepts would provide the best solution?

• A: Scalability
• B: Hybrid
• C: Multitenancy
• D: Elasticity

QUESTION 3: A network administrator is configuring a firewall to allow for a new cloud-based email server. The company standard is to use SMTP to route email traffic. Which of the following ports, by default, should be reserved for this purpose?

• A: 23
• B: 25
• C: 53
• D: 110

QUESTION 4: A technician is connecting DSL for a new customer. After installing and connecting the on- premises equipment, the technician verifies DSL synchronization. When connecting to a workstation, however, the link LEDs on the workstation and modem do not light up. Which of the following should the technician perform during troubleshooting?

• A: Identify the switching loops between the modem and the workstation.
• B: Check for asymmetrical routing on the modem.
• C: Look for a rogue DHCP server on the network.
• D: Replace the cable connecting the modem and the workstation.

QUESTION 5: A non-employee was able to enter a server room. Which of the following could have prevented this from happening?

• A: A security camera
• B: A biometric reader
• C: OTP key fob
• D: Employee training

QUESTION 6: An engineer is configuring redundant network links between switches. Which of the following should the engineer enable to prevent network stability issues?

• A: 802.1Q
• B: STP
• C: Flow control
• D: CSMA/CD

QUESTION 7: A network technician is manually configuring the network settings for a new device and is told the network block is 192.168.0.0/20. Which of the following subnets should the technician use?

• A: 255.255.128.0
• B: 255.255.192.0
• C: 255.255.240.0
• D: 255.255.248.0

QUESTION 8: Which of the following physical security methods Is the MOST effective to prevent tailgating?

• A: Biometrics in an access control vestibule
• B: IP cameras with motion detection
• C: Smart lockers with tamper protection
• D: Badge readers plus a PIN pad

QUESTION 9: Which of the following is a valid alternative to maintain a deployed proxy technology while saving physical space in the data center by moving the network service to the virtualization infrastructure?

• A: NFV
• B: SDWAN
• C: Networking as code
• D: VIP

QUESTION 10: A building was recently remodeled in order to expand the front lobby. Some mobile users have been unable to connect to the available network jacks within the new lobby, while others have had no issues. Which of the following is the MOST likely cause of the connectivity issues?

• A: LACP
• B: Port security
• C: 802.11ax
• D: Duplex settings