49851. If the ASCII character H is sent and the character I is received, what type of error is this?
49852. A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?
49853. UDP is:
49854. The interactive transmission of data within a time sharing system may be best suited to
49855. What OSI layer handles logical address to logical name resolution?
49856. The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?
49857. Which of the following is an example of a client-server model?
49858. The ripple factor and efficiency of a half wave rectifier are respectively:
49859. A WATS arrangement
49860. A T-switch is used to
49861. A global network of millions of business, government, educational, and research networks; computer systems; database; and end users. Select the best fit for answer:
49862. Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?
49863. The CCITT Recommendation X.25 specifies three layers of communications:
49864. Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM?
49865. The amount of uncertainty in a system of symbol is called
49866. Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
49867. What does 192 translate to in binary?
49868. An information utility can offer a user
49869. An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer:
49870. Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called
49871. A network which is used for sharing data, software and hardware among several users owning microcomputers is called
49872. In geosynchronous orbit, satellite
49873. A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
49874. What does 240 translate to in binary?
49875. You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?
49876. A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.
49877. Most networks are connected to other local area or wide area networks. Select the best fit for answer:
49878. You are working with a network that is 172.16.0.0 and would like to support 600 hosts per subnet. What subnet mask should you use?
49879. A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?
49880. Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)?
49881. Error detecting code is
49882. A modulator converts a _____ signal to a(n) _____ signal.
49883. The birthplace of the World Wide Web is considered to be
49884. You have purchased a MAU (Multistation Access Unit) from your computer supplier and now must decide what type of network card you should install in the workstations. Which of the following would be the most appropriate?
49885. What is the loopback address?
49886. An ROP would be attached to a
49887. Who originally designed TCP/IP?
49888. The systematic access of small computers in a distributed data processing system is referred to as:
49889. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
49890. An example of digital, rather than analog, communication is
49891. How many OSI layers are covered in the X.25 standard?
49892. A band is always equivalent to
49893. What is the port number for HTTP?
49894. The most flexibility in how devices are wired together is provided by
49895. For a short transmission with series impedance Z,all the capacitance being negligibly small,the ABCD constants of the line are:
49896. When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?
49897. Bus is
49898. Which of the following medium is used for broadband local networks?
49899. In cyclic redundancy checking what is the CRC?
49900. What is the maximum number of entries in the HOSTS file?
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