📘 Free N10-008 Sample Questions
A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use
2.4 GHz and 5 GHz. Which of the following should the systems administrator select to meet this requirement?
A
802.11ac
B
802.11ax
C
802.11g
D
802.11n
Correct Answer:
B. 802.11ax
Explanation:
Wi-Fi 6 (802.11ax) can now divide a wireless channel into a large number of subchannels. Each of these subchannels can carry data intended for a different device. This is achieved through something called Orthogonal Frequency Division Multiple Access, or OFDMA. The Wi-Fi access point can talk to more devices at once. The new riderless standard also has improved MIMO—Multiple In/Multiple Out. This involves multiple antennas, which let the access point talk to multiple devices at once. With Wi-Fi 5, the access point could talk to devices at the same time, but those devices couldn’t respond at the same time. Wi-Fi 6 has an improved version of multi-user or MU-MIMO that lets devices respond to the wireless access point at the same time
Which of the following would be BEST to use to detect a MAC spoofing attack?
A
Internet Control Message Protocol
B
Reverse Address Resolution Protocol
C
Dynamic Host Configuration Protocol
D
Internet Message Access Protocol
Correct Answer:
B. Reverse Address Resolution Protocol
Explanation:
A MAC spoofing attack consists of changing the MAC address of a network device (network card). A client computer can use Revers Address Resolution Protocol to request its Internet Protocol (IPv4) address and MAC address from a computer network to check its accuracy. DHCP auto assigns a IP address so this is why this is not the answer
Wireless users are reporting intermittent internet connectivity. Connectivity is restored when the users disconnect and reconnect, utilizing the web authentication process each time. The network administrator can see the devices connected to the APs at all times. Which of the following steps will MOST likely determine the cause of the issue?
A
Verify the session time-out configuration on the captive portal settings
B
Check for encryption protocol mismatch on the client's wireless settings
C
Confirm that a valid passphrase is being used during the web authentication
D
Investigate for a client's disassociation caused by an evil twin AP
Correct Answer:
A. Verify the session time-out configuration on the captive portal settings
Explanation:
A: makes the most sense. Clearly the answer is A web authentication linked to captive portals
B. Encryption protocol, being mismatched I don't think would connect at all. Especially given that the access points are connected at all times.
C. They have been able to reconnect before being disconnected so they are getting through authentication.
D. The web administrator sees that they are connected, indicating it's not an evil twin but an issue on the network. This is definitely an easier question, just read it, and look at what makes the most sense. web authentication is linked to captive portals
A network administrator walks into a datacenter and notices an unknown person is following closely. The administrator stops and directs the person to the security desk. Which of the following attacks did the network administrator prevent?
A
Evil twin
B
Tailgating
C
Piggybacking
D
Shoulder surfing
Correct Answer:
B. Tailgating
Explanation:
A: evil twin It is a access point that looks leginmate, that is used to eavesdrop the wireless communications on the network.
B: tailgating The act of following someone without their consent or knowledge
C: piggybacking Following the individual with the consent, however piggybacking can also include using another person's wireless connections, and essentially causing issues over the network communications (bandwidth, speed, etc)
D: shoulder surfing Finding out information by looking over the shoulders of the individual sitting at a computer or doing something. Sometimes seeing the password they type in as they login to their computer, or obtaining other valuable information just by kind of glancing at the screen. But the case of this question B. Tailgating.
A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator
MOST likely start to troubleshoot?
A
Layer 1
B
Layer 2
C
Layer 3
D
Layer 4
E
Layer 5
F
Layer 6
Correct Answer:
B. Layer 2
Explanation:
The data unit on Layer 2 is a frame.
Each frame contains a frame header, body, and a frame trailer: Header: typically includes MAC addresses for the source and destination nodes. Body: consists of the bits being transmitted. Trailer: includes error detection information. When errors are detected, and depending on the implementation or configuration of a network or protocol, frames may be discarded or the error may be reported up to higher layers for further error correction. Examples of error detection mechanisms: Cyclic Redundancy Check (CRC) and Frame Check Sequence (FCS). Learn more about error detection techniques here.
Answer is Layer 2 (B
A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of the following metrics will MOST accurately show the underlying performance issues? (Choose two.)
A
CPU usage
B
Memory
C
Temperature
D
Bandwidth
E
Latency
F
Jitter
Correct Answer:
A. CPU usage
Explanation:
A. CPU usage and B. Memory are the two metrics that will most accurately show the underlying performance issues in this scenario. To accurately show the underlying performance issues in this scenario, monitoring the CPU usage and memory will be most helpful. The slow or unresponsive desktops experienced by 100 users suggest a bottleneck on the VM host. Temperature, bandwidth, latency, and jitter are unlikely to be the cause of the problem, based on the reported network metrics.
Client devices cannot enter a network, and the network administrator determines the DHCP scope is exhausted. The administrator wants to avoid creating a new
DHCP pool. Which of the following can the administrator perform to resolve the issue?
A
Install load balancers
B
Install more switches
C
Decrease the number of VLANs
D
Reduce the lease time
Correct Answer:
D. Reduce the lease time
Explanation:
D, Reducing the lease time is the best answer here. While there isn't much additional info regarding how long it currently is, if some jabroni configured a lease time of two weeks, there will be a bunch of lingering leases that aren't in use and could be utilized by new devices.
An administrator is writing a script to periodically log the IPv6 and MAC addresses of all the devices on a network segment. Which of the following switch features will MOST likely be used to assist with this task?
A
Spanning Tree Protocol
B
Neighbor Discovery Protocol
C
Link Aggregation Control Protocol
D
Address Resolution Protocol
Correct Answer:
B. Neighbor Discovery Protocol
Explanation:
Neighbor Discovery Protocol is similar to ARP but retrieves the IPV6 address. ARP retrieves IPv4
Which of the following DNS records works as an alias to another record?
A
AAAA
B
CNAME
C
MX
D
SOA
Correct Answer:
B. CNAME
Explanation:
AAAA record is used to find the IP address of a computer connected to the internet from a name. . CNAME record is a type of
DNS record that maps an alias name to a true or canonical domain name. .
MX record specifies the mail server responsible for accepting email messages on behalf of a domain name. . SOA record is a type of resource record in the DNS containing administrative information about the zone.
A CNAME record stands for "canonical name" record and is used to create an alias from one domain name to another domain name. It is commonly used when a domain owner wants a domain name to point to another
domain name, instead of directly pointing to an IP address
A company built a new building at its headquarters location. The new building is connected to the company's LAN via fiber-optic cable. Multiple users in the new building are unable to access the company's intranet site via their web browser, but they are able to access internet sites. Which of the following describes how the network administrator can resolve this issue?
A
Correct the DNS server entries in the DHCP scope
B
Correct the external firewall gateway address
C
Correct the NTP server settings on the clients
D
Correct a TFTP Issue on the company's server
Correct Answer:
A. Correct the DNS server entries in the DHCP scope
Explanation:
The DNS server would need to point to the internal address for internal networks. If you were using say, Googles DNS server the server would not know how to resolve internal.comapy.site
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