Download Networking Fundamentals.98-366.RealExams.2018-10-10.96q.vcex

Vendor: Microsoft
Exam Code: 98-366
Exam Name: Networking Fundamentals
Date: Oct 10, 2018
File Size: 802 KB
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Demo Questions

Question 1
The default subnet mask for a Class B network is:
  1. 0.0.0.255
  2. 0.0.255.255
  3. 255.0.0.0
  4. 255.255.0.0
Correct answer: D
Explanation:
Class A default subnet mask is 255.0.0.0. Class B default subnet mask is 255.255.0.0. Class C default subnet mask is 255.255.255.0.
Class A default subnet mask is 255.0.0.0. 
Class B default subnet mask is 255.255.0.0. 
Class C default subnet mask is 255.255.255.0.
Question 2
The default port used for SMTP is:
  1. 23
  2. 25
  3. 80
  4. 8080
Correct answer: B
Explanation:
SMTP by default uses TCP port 25. 
SMTP by default uses TCP port 25. 
Question 3
Which of the following are features of DHCP? (Choose two.)
  1. IP address resolution to canonical names
  2. Secure shell connections
  3. Address reservation
  4. Network file transfer
  5. IP address exclusion
Correct answer: CE
Explanation:
* The Dynamic Host Configuration Protocol (DHCP) is a standardized network protocol used on Internet Protocol (IP) networks for dynamically distributing network configuration parameters, such as IP addresses for interfaces and services. * Some network devices need to use statically assigned IP addresses rather than addresses dynamically assigned through DHCP. For example, DHCP servers must have statically configured IP addresses. Also, some devices (such as legacy network printers) do not support DHCP. For the devices that need static IP assignments, the company creates an exclusion range from each IP address range.
* The Dynamic Host Configuration Protocol (DHCP) is a standardized network protocol used on Internet Protocol (IP) networks for dynamically distributing network configuration parameters, such as IP addresses for interfaces and services. 
* Some network devices need to use statically assigned IP addresses rather than addresses dynamically assigned through DHCP. For example, DHCP servers must have statically configured IP addresses. Also, some devices (such as legacy network printers) do not support DHCP. 
For the devices that need static IP assignments, the company creates an exclusion range from each IP address range.
Question 4
The command-line tool used to list a host's active incoming connections is:
  1. NETSTAT
  2. IPCONFIG
  3. NSLOOKUP
  4. PING
Correct answer: A
Explanation:
Used without parameters, netstat displays active TCP connections. Note: Netstat displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP protocols), and IPv6 statistics (for the IPv6, ICMPv6, TCP over IPv6, and UDP over IPv6 protocols).  
Used without parameters, netstat displays active TCP connections. 
Note: Netstat displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP protocols), and IPv6 statistics (for the IPv6, ICMPv6, TCP over IPv6, and UDP over IPv6 protocols).  
Question 5
A service that resolves NetBIOS names to IP addresses is:
  1. Domain Name Service (DNS).
  2. Internet Service Provider (ISP).
  3. Address Resolution Protocol (ARP).
  4. Windows Internet Name Service (WINS).
Correct answer: D
Explanation:
Windows Internet Name Service (WINS) is Microsoft's implementation of NetBIOS Name Service (NBNS), a name server and service for NetBIOS computer names. Effectively, WINS is to NetBIOS names what DNS is to domain names — a central mapping of host names to network addresses.
Windows Internet Name Service (WINS) is Microsoft's implementation of NetBIOS Name Service (NBNS), a name server and service for NetBIOS computer names. Effectively, WINS is to NetBIOS names what DNS is to domain names — a central mapping of host names to network addresses.
Question 6
What type of DNS record maps host names to addresses?
  1. Mail Exchanger (MX) DNS record
  2. Service (SRV) DNS record
  3. Host (A) DNS record
  4. Canonical (CNAME) DNS record
Correct answer: C
Explanation:
An A or Address record (also known as a host record) links a domain to the physical IP address of a computer hosting that domain's services.
An A or Address record (also known as a host record) links a domain to the physical IP address of a computer hosting that domain's services.
Question 7
Teredo tunneling is a protocol that:
  1. Translates Internet Protocol version 4 (IPv4) to Internet Protocol version 6 (IPv6).
  2. Allows IPv6 connectivity through IPv4 devices.
  3. Provides VPN security.
  4. Dynamically allocates IPv6 addresses. 
Correct answer: B
Explanation:
Teredo alleviates this problem by encapsulating IPv6 packets within UDP/IPv4 datagrams, which most NATs can forward properly. Thus, IPv6-aware hosts behind NATs can be used as Teredo tunnel endpoints even when they don't have a dedicated public IPv4 address.
Teredo alleviates this problem by encapsulating IPv6 packets within UDP/IPv4 datagrams, which most NATs can forward properly. Thus, IPv6-aware hosts behind NATs can be used as Teredo tunnel endpoints even when they don't have a dedicated public IPv4 address.
Question 8
What is the default subnet mask for a Class C Internet network?
  1. 255.255.255.252
  2. 255.255.255.240
  3. 255.255.255.192
  4. 255.255.255.0
Correct answer: D
Explanation:
Class A default subnet mask is 255.0.0.0. Class B default subnet mask is 255.255.0.0. Class C default subnet mask is 255.255.255.0.
Class A default subnet mask is 255.0.0.0. 
Class B default subnet mask is 255.255.0.0. 
Class C default subnet mask is 255.255.255.0.
Question 9
The default port used for telnet is:
  1. 23
  2. 25
  3. 80
  4. 8080
Correct answer: A
Explanation:
The telnet protocol is used to establish a connection to Transmission Control Protocol (TCP) port number 23, where a Telnet server application (telnetd) is listening. 
The telnet protocol is used to establish a connection to Transmission Control Protocol (TCP) port number 23, where a Telnet server application (telnetd) is listening. 
Question 10
When a client's DHCP-issued address expires, the client will:
  1. Select a new address and request approval from the DHCP server.
  2. Require manual configuration with a static IP address.
  3. Attempt to obtain a new address by broadcasting.
  4. Continue to use the address until it is notified to stop.
Correct answer: C
Explanation:
Rebinding would occur.  Rebinding If the DHCP client is unable to communicate with the DHCP server from which it obtained its lease, and 87.5 percent of its lease time has expired, it will attempt to contact any available DHCP server by broadcasting DHCPRequest messages. Any DHCP server can respond with a DHCPAck message, renewing the lease, or a DHCPNak message, forcing the DHCP client to initialize and restart the lease process. Note: Renewing IP addressing information is leased to a client, and the client is responsible for renewing the lease. By default, DHCP clients try to renew their lease when 50 percent of the lease time has expired. To renew its lease, a DHCP client sends a DHCPRequest message to the DHCP server from which it originally obtained the lease. Reference: DHCP Client States in the Lease Process
Rebinding would occur.  
Rebinding 
If the DHCP client is unable to communicate with the DHCP server from which it obtained its lease, and 87.5 percent of its lease time has expired, it will attempt to contact any available DHCP server by broadcasting DHCPRequest messages. Any DHCP server can respond with a DHCPAck message, renewing the lease, or a DHCPNak message, forcing the DHCP client to initialize and restart the lease process. 
Note: 
Renewing 
IP addressing information is leased to a client, and the client is responsible for renewing the lease. By default, DHCP clients try to renew their lease when 50 percent of the lease time has expired. To renew its lease, a DHCP client sends a DHCPRequest message to the DHCP server from which it originally obtained the lease. 
Reference: DHCP Client States in the Lease Process
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