CompTIA CompTIA Mobility+ N10-005 Questions & Answers

• Question 781:

  Which of the following protocols is MOST commonly used for the transfer of router configuration files?

  A. SSL

  B. TFTP

  C. DNS

  D. IMAP

  Correct Answer: B

  Trivial File Transfer Protocol (TFTP) is a file transfer protocol notable for its simplicity. It is generally used for automated transfer of configuration or boot files between machines in a local environment. Compared to FTP, TFTP is extremely limited, providing no authentication, and is rarely used interactively by a user.

• Question 782:

  Which of the following TCP ports are used by FTP? (Select TWO).

  A. 20

  B. 21

  C. 22

  D. 23

  E. 25

  F. 80

  Correct Answer: AB

  FTP uses two ports by default: 21 for sending commands, and 20 for sending data. For instance if you said "FTP " it would make the attempt using port 21. If the session was established, port 20 would be using for the data. NotE. These are the default ports which is what I assume you were asking. A server administrator can however configure FTP to use whatever port he defines.

• Question 783:

  Which of the following DNS records is used to identify a domain's SMTP server?

  A. CNAME

  B. PTR

  C. MX

  D. A

  Correct Answer: C

  A mail exchanger record (MX record) is a type of resource record in the Domain Name System that specifies a mail server responsible for accepting email messages on behalf of a recipient's domain, and a preference value used to prioritize mail delivery if multiple mail servers are available. The set of MX records of a domain name specifies how email should be routed with the Simple Mail Transfer Protocol (SMTP).

• Question 784:

  A user is unable to access any network resources. The IP configuration of the workstation is as follows:

  IP Address: 192.168.10.32 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.10.46

  Which of the following would allow the user to connect to network resources?

  A. Change the default gateway to 192.168.10.1

  B. Change the default gateway to 192.168.10.254

  C. Change the IP address to 192.168.10.31

  D. Change the IP address to 192.168.10.33

  Correct Answer: D

  The given ip address is network id which we don't assign to the host so the next ip is applicable to this.

• Question 785:

  At which of the following layers do frames exist? (Select TWO).

  A. OSI model Data link layer

  B. TCP/IP model Network Interface layer

  C. OSI model Physical layer

  D. OSI model Network layer

  E. TCP/IP model Internet layer

  Correct Answer: AB

  The data link layer is concerned with local delivery of frames between devices on the same LAN. Data-link frames, as these protocol data units are called, do not cross the boundaries of a local network. Inter-network routing and global addressing are higher layer functions, allowing data-link protocols to focus on local delivery, addressing, and media arbitration. In this way, the data link layer is analogous to a neighborhood traffic cop; it endeavors to arbitrate between parties contending for access to a medium, without concern for their ultimate destination.

• Question 786:

  Assigning the same IP address to a network device is which of the following?

  A. SSID

  B. Scope

  C. Reservation

  D. Lease

  Correct Answer: C

  You might want to assign network printers and certain servers DHCP reservations to ensure that they always have the same IP address, but continue to receive updated configuration information from the DHCP server. For example, create reservations for servers that must always have the same IP address.

• Question 787:

  Which of the following uses port 23 by default?

  A. TELNET

  B. IMAP

  C. FTP

  D. SNMP

  Correct Answer: A

  Telnet is a network protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. User data is interspersed in-band with Telnet control information in an 8-bit byte oriented data connection over the Transmission Control Protocol (TCP).

• Question 788:

  At which of the following layers of the OSI model does ASCII work?

  A. Session

  B. Transport

  C. Presentation

  D. Application

  Correct Answer: C

  The presentation layer is responsible for the delivery and formatting of information to the application layer for further processing or display. It relieves the application layer of concern regarding syntactical differences in data representation within the end-user systems. An example of a presentation service would be the conversion of an EBCDIC-coded text computer file to an ASCII-coded file.

• Question 789:

  Which of the following commands displays the routing table on a server or workstation?

  A. nbtstat

  B. route

  C. traceroute

  D. nmap

  Correct Answer: B

  The route command allows you to make manual entries into the network routing tables. The route command distinguishes between routes to hosts ...

• Question 790:

  Discover, Offer, Request, and Acknowledge are the steps for which of the following protocols?

  A. DNS

  B. DOS

  C. DHCP

  D. DSL

  Correct Answer: C

  When we install a dhcp server into our network then dhcp server works on the basis of dora process first dhcp server sends a hello message in to the network to discover the clients pc and when any client pc found in the network then, dhcp server offers the IP to client pc. When client pc selects any IP from dhcp server then client pc request for selected IP to dhcp server then dhcp server provide that IP to client pc and both send ackonledgement to each other.