Inf4018nsa

68 Questions | Total Attempts: 70

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Inf4018nsa


Questions and Answers
  • 1. 
    A device designed to filter and transfer data packets between dissimilar types of computer networks is called:
    • A. 

      Router

    • B. 

      Hub

    • C. 

      Load balancer

    • D. 

      Switch

  • 2. 
    Which of the following answers refers to a data link layer device designed to forward data frames between Local Area Network (LAN) segments?
    • A. 

      Switch

    • B. 

      Firewall

    • C. 

      Router

    • D. 

      Hub

  • 3. 
    A device that apart from the function of an ordinary network switch can also provide additional functions at higher levels of the OSI reference model is known as a multilayer switch.
    • A. 

      True

    • B. 

      False

  • 4. 
    An infrastructure device designed for connecting wireless/wired client devices to a network is commonly referred to as:
    • A. 

      Access Point (AP)

    • B. 

      Demarc Point

    • C. 

      Intermediate Distribution Frame (IDF)

    • D. 

      Active hub

  • 5. 
    Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
    • A. 

      Firewall

    • B. 

      Vulnerability scanner

    • C. 

      Load balancer

    • D. 

      HIDS

  • 6. 
    A network device designed for managing the optimal distribution of workloads across multiple computing resources is called:
    • A. 

      Load balancer

    • B. 

      Layer 3 switch

    • C. 

      Access Point (AP)

    • D. 

      Domain controller

  • 7. 
    The disadvantage from using this device results from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports which has a negative impact on network performance.
    • A. 

      Hub

    • B. 

      Router

    • C. 

      Switch

    • D. 

      Bridge

  • 8. 
    A system that uses public network (e.g. Internet) as a means for creating private encrypted connections between remote locations is known as:
    • A. 

      Virtual Private Network (VPN)

    • B. 

      Personal Area Network (PAN)

    • C. 

      Virtual Local Area Network (VLAN)

    • D. 

      Integrated Services Digital Network (ISDN)

  • 9. 
    Which of the following solutions provides an alternative to manual assignment of IP addresses?
    • A. 

      DHCP

    • B. 

      DNS

    • C. 

      SNMP

    • D. 

      NAT

  • 10. 
    One of the features of the Dynamic Host Configuration Protocol (DHCP) is the capability for static allocation of an IP address based on the IP-to-MAC address mapping.
    • A. 

      True

    • B. 

      False

  • 11. 
    A range of IP addresses assigned to hosts requesting dynamic IP address from a DHCP server is known as:
    • A. 

      Scope

    • B. 

      Lease

    • C. 

      DHCP relay

    • D. 

      Reservation

  • 12. 
    The duration of time a DHCP client can use an IP address dynamically assigned by the DHCP server is referred to as:
    • A. 

      Lease

    • B. 

      Scope

    • C. 

      Reservation

    • D. 

      Option

  • 13. 
    DHCP allows for passing additional configuration settings to DHCP clients on a network. The additional settings might include (among other types of configuration info) the default gateway IP address, or DNS server IP address. Which of the answers listed below refers to the part of a DHCP message containing those settings?
    • A. 

      Options

    • B. 

      Scope

    • C. 

      Reservation

    • D. 

      Lease

  • 14. 
    Networked clients not residing on the same subnet as the DHCP server can still obtain an IP address from the server through a DHCP relay agent.
    • A. 

      True

    • B. 

      False

  • 15. 
    Which of the following answers refers to a system containing mappings of domain names to various types of data, such as for example numerical IP addresses?
    • A. 

      DNS

    • B. 

      TCP/IP

    • C. 

      ARP

    • D. 

      DHCP

  • 16. 
    In order to be able to connect to a website and display its contents, a URL entered in the web browser address bar needs to be translated into an IP address. Which of the servers listed below is used to handle this type of request?
    • A. 

      DNS server

    • B. 

      ICS server

    • C. 

      Web server

    • D. 

      DHCP server

  • 17. 
    Which of the DNS database records listed below returns a 32-bit IPv4 address?
    • A. 

      A

    • B. 

      MX

    • C. 

      CNAME

    • D. 

      PTR

  • 18. 
    Which of the following DNS database records maps a domain name to a list of mail servers for that domain?
    • A. 

      MX

    • B. 

      PTR

    • C. 

      CNAME

    • D. 

      AAAA

    • E. 

      A

  • 19. 
    The DNS database AAAA record creates a pointer that maps a hostname to:
    • A. 

      IPv6 address

    • B. 

      IPv4 address

    • C. 

      Mail server

    • D. 

      Canonical name

  • 20. 
    Which of the following solutions alleviates the problem of depleting number of routable IPv4 addresses?
    • A. 

      NAT

    • B. 

      DNS

    • C. 

      GRE

    • D. 

      VPN

  • 21. 
    Which layer in the Open Systems Interconnection (OSI) model enables coding and conversion functions for application layer data?
    • A. 

      Presentation layer

    • B. 

      Session layer

    • C. 

      Application layer

    • D. 

      Physical layer

  • 22. 
    You have been assigned a network ID of 172.16.0.0/26. If you utilize the first network resulting from this ID, what would be the last legitimate host address in this subnet?
    • A. 

      172.16.0.63

    • B. 

      172.16.0.65

    • C. 

      172.16.0.62

    • D. 

      172.16.0.64

  • 23. 
    You are working with an Internet Service Provider (ISP) as network manager. A corporate client approaches you to lease a public IP subnet that can accommodate 250 users. You have assigned him the 192.25.27.0 subnet. What subnet mask should be assigned to this IP address so that it can accommodate the number of users required by the corporate client?
    • A. 

      255.255.255.0

    • B. 

      255.255.255.128

    • C. 

      255.255.255.252

    • D. 

      255.255.255.224

  • 24. 
    When packets are transmitted from one host to another across a routed segment, which two addresses are changed? ((Choose those that apply))
    • A. 

      Source MAC address

    • B. 

      Destination IP address

    • C. 

      Destination MAC address

    • D. 

      Source IP address

  • 25. 
    Which of the following IP addresses are valid Class B host addresses if a default Class B mask is in use? (Choose those that apply)
    • A. 

      133.6.5.4

    • B. 

      10.6.8.35

    • C. 

      192.168.5.9

    • D. 

      172.16.5.1

    • E. 

      127.0.0.1

    • F. 

      190.6.5.4